Document:

Exhibit 4.9
                                PROMISSORY NOTE

                                 August 1, 2005

For value received, the undersigned, MCKENZIE BAY INTERNATIONAL, LTD.
("Borrower") a Delaware Corporation with principal offices at 37899 Twelve Mile
Road, Farmington Hills, MI 48331 promises to pay GARY L. WESTERHOLM AND HELEN A.
WESTERHOLM, CO-TRUSTEES, THE WESTERHOLM FAMILY LIVING TRUST, ("Noteholder")
whose address is 3362 Moraine Dr., Brighton, MI 48114, or order, the principal
sum of two hundred fifty thousand and no/100 ($ 250,000.00) Dollars or the
aggregate unpaid principal amount of all advances made to MCKENZIE BAY
INTERNATIONAL, LTD. at its request, whichever is lesser, and to pay interest
from the date of each advance until paid in full at 3.58%, the Applicable
Federal Rate on short term obligations as of this date.  Principal and interest
shall be payable at  3362 Moraine Dr., Brighton, MI 48114, or such other place
as the Noteholder may designate on or before September15, 2005.

If suit is brought to collect this note, the Noteholder shall be entitled to
collect all reasonable costs and expenses of suit including but not limited to
reasonable attorneys' fees.

Borrower may prepay the principal amount outstanding in whole or in part.  Any
partial prepayment shall be applied against the principal amount outstanding and
shall not postpone the due date unless the Noteholder shall otherwise agree in
writing.

Presentment, notice of dishonor and protest are hereby waived by all makers,
sureties, guarantors and endorsers hereof.  This note shall be the joint and
several obligation of all makers, sureties, guarantors and endorsers and shall
be binding upon them and their successors and assigns.

Any notice to Borrower provided for in this note shall be given by mailing such
notice by certified mail addressed to Borrower at the address stated below or to
any such other address as Borrower may designate by notice to the Noteholder.
Any notice to the Noteholder shall be given by mailing such notice by certified
mail, return receipt requested to the Noteholder at the address stated in the
first paragraph of this note or at such other address as may have been
designated by notice to Borrower.

MCKENZIE BAY INTERNATIONAL, LTD.

/s/ Gregory N. Bakeman
_________________________________________
by: GREGORY N. BAKEMAN
it's: Chief Financial OfficerExhibit 4.10

                                                      Dated:  October ___, 2005

     NEITHER THIS DEBENTURE NOR THE SECURITIES INTO WHICH THIS DEBENTURE IS
CONVERTIBLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR
   THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM
   REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES
   ACT"), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN
  EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO AN
 AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION
   REQUIREMENTS OF THE SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE STATE
                                SECURITIES LAWS.

                           No. CCP-1       $3,000,000

                        MCKENZIE BAY INTERNATIONAL, LTD.

                         Secured Convertible Debenture

                             Due October ___, 2007

This Secured Convertible Debenture (the 'Debenture") is issued by
MCKENZIE BAY INTERNATIONAL, LTD., a Delaware corporation (the
'Obligor"), to CORNELL CAPITAL PARTNERS, LP (the 'Holder"), pursuant to
that certain Securities Purchase Agreement (the 'Securities Purchase
Agreement") of even date herewith.

FOR VALUE RECEIVED, the Obligor hereby promises to pay to the Holder or
its successors and assigns the principal sum of Three Million Dollars
($3,000,000) together with accrued but unpaid interest on or before
October ___, 2007 (the 'Maturity Date") in accordance with the following
terms:

Interest.  Interest shall accrue on the outstanding principal balance hereof at
an annual rate equal to ten percent (10%).  Interest shall be calculated on the
basis of a 360-day year and the actual number of days elapsed, to the extent
permitted by applicable law.  Interest hereunder will be paid to the Holder or
its assignee  (as defined in Section 4) in whose name this Debenture is
registered on the records of the Obligor regarding registration and transfers of
Debentures (the 'Debenture Register").

Right of Redemption.  The Obligor at its option shall have the right, with three
(3) business days advance written notice (the 'Redemption Notice"), to redeem a
portion or all amounts outstanding under this Debenture prior to the Maturity
Date as follows: (i) if the closing bid price of the of the Obligor's Common
Stock, as reported by Bloomberg, LP, is less than the Fixed Price at the time of
the Redemption Notice the Obligor shall pay an amount equal to the principal
amount outstanding and accrued interest being redeemed, plus a redemption
premium of twenty percent (20%) ('Redemption Premium") of the amount redeemed
(collectively referred to as the 'Redemption Amount") or (ii) if the closing bid
price of the of the Obligor's Common Stock, as reported by Bloomberg, LP, is
greater than the Fixed Price at the time of the Redemption Notice the Obligor
shall pay the greater of (x) an amount equal to the principal amount outstanding
and accrued interest being redeemed, plus a Redemption Premium on the amount
redeemed or (y) an amount equal to the principal amount outstanding and accrued
interest being redeemed, plus a redemption premium equal to the percentage
difference between the closing bid price of the of the Obligor's Common Stock,
as reported by Bloomberg, LP. and the Fixed Price on the Redemption Notice date.
The Obligor shall deliver to the Holder the Redemption Amount on the third (3rd)
business day after the Redemption Notice.

In the event that the Obligor redeems a portion of the amount outstanding under
this Debenture, or the Holder converts a portion of the principal amount
outstanding and accrued interest under this Debenture as contemplated herein,
the Obligor shall be entitled to an off-set of the amount of principal and
accrued interest due pursuant to the Schedule Payment equal to the amount of
principal and accrued interest redeemed or converted (the 'Off-Set Amount").
Notwithstanding the foregoing in the event that the Obligor has elected to
redeem a portion of the outstanding principal amount and accrued interest under
this Debenture the Holder shall still be entitled to effectuate Conversions as
contemplated hereunder.

Security Agreements.  This Debenture is secured a Pledge and Escrow
Agreement (the 'Pledge Agreement") of even date herewith among the
Obligor, the Holder, and the Escrow Agent,.

Consent  of Holder to Sell Capital Stock or Grant Security Interests.  Except
for the  capital stock to be issued pursuant to the Standby Equity Distribution
Agreement of even date herewith between the Obligor and Cornell Capital
Partners, LP, so long as any of the principal amount or interest on this
Debenture remains unpaid and unconverted, the Obligor shall not, without the
prior consent of the Holder, (i) issue or sell any common stock or preferred
stock without consideration or for a consideration per share less than the bid
price of the Common Stock determined immediately prior to its issuance, (ii)
issue or sell without consideration or for a consideration per share less than
the bid price of the Common Stock determined immediately prior to its issuance,
any preferred stock, warrant, option, right, contract, call, or other security
or instrument granting the holder thereof the right to acquire common stock,
(iii) other than security interests in connection with Power Purchase Agreements
(including inventory and receivables relating to the Power Purchase Agreements)
which have been disclosed to the Buyer(s) as has been disclosed to the Buyer(s),
enter into any security instrument granting the holder a security interest in
any of the assets of the Obligor, or (iv) file any registration statements on
Form S-8.  Not withstanding the foregoing the Obligor shall provide the Holder
ten (10) business days prior written notice prior to granting any security
interests in connection with Power Purchase Agreements.  Furthermore while there
is a principal amount due and outstanding under the Convertible Debentures the
Company shall be entitled, every calendar year, upon ten (10) business days
prior written notice to the Buyer(s), to file a registration statement on Form
S-8 registering up to five hundred thousand (500,000) shares of the Company's
Common Stock under the Company's bona fide employee stock option plan of which
of which up to two hundred fifty thousand (250,000) shares maybe registered for
and issued to officers and directors and two hundred fifty thousand (250,000)
shares maybe registered for and issued to employees per calendar year.

This Debenture is subject to the following additional provisions:

Section 1.	This Debenture is exchangeable for an equal aggregate principal
amount of Debentures of different authorized denominations, as requested by the
Holder surrendering the same. No service charge will be made for such
registration of transfer or exchange.

Section 2.	Events of Default.

(a)	An 'Event of Default", wherever used herein, means any one of the
following events (whatever the reason and whether it shall be voluntary or
involuntary or effected by operation of law or pursuant to any judgment, decree
or order of any court, or any order, rule or regulation of any administrative or
governmental body):

(i)	Any default in the payment of the principal of, interest on or other
charges in respect of this Debenture, free of any claim of subordination, as and
when the same shall become due and payable (whether on a  Conversion Date or the
Maturity Date or by acceleration or otherwise);

(ii)	The Obligor shall fail to observe or perform any other covenant,
agreement or warranty contained in, or otherwise commit any breach or default of
any provision of this Debenture (except as may be covered by Section 2(a)(i)
hereof) or any Transaction Document (as defined in Section 4) which is not cured
with in the time prescribed;

(iii)	The Obligor or any subsidiary of the Obligor shall commence, or there
shall be commenced against the Obligor or any subsidiary of the Obligor under
any applicable bankruptcy or insolvency laws as now or hereafter in effect or
any successor thereto, or the Obligor or any subsidiary of the Obligor commences
any other proceeding under any reorganization, arrangement, adjustment of debt,
relief of debtors, dissolution, insolvency or liquidation or similar law of any
jurisdiction whether now or hereafter in effect relating to the Obligor or any
subsidiary of the Obligor or there is commenced against the Obligor or any
subsidiary of the Obligor any such bankruptcy, insolvency or other proceeding
which remains undismissed for a period of 61 days; or the Obligor or any
subsidiary of the Obligor is adjudicated insolvent or bankrupt; or any order of
relief or other order approving any such case or proceeding is entered; or the
Obligor or any subsidiary of the Obligor suffers any appointment of any
custodian, private or court appointed receiver or the like for it or any
substantial part of its property which continues undischarged or unstayed for a
period of sixty one (61) days; or the Obligor or any subsidiary of the Obligor
makes a general assignment for the benefit of creditors; or the Obligor or any
subsidiary of the Obligor shall fail to pay, or shall state that it is unable to
pay, or shall be unable to pay, its debts generally as they become due; or the
Obligor or any subsidiary of the Obligor shall call a meeting of its creditors
with a view to arranging a composition, adjustment or restructuring of its
debts; or the Obligor or any subsidiary of the Obligor shall by any act or
failure to act expressly indicate its consent to, approval of or acquiescence in
any of the foregoing; or any corporate or other action is taken by the Obligor
or any subsidiary of the Obligor for the purpose of effecting any of the
foregoing;

(iv)	The Obligor or any subsidiary of the Obligor shall default in any of its
obligations under any other debenture or any mortgage, credit agreement or other
facility, indenture agreement, factoring agreement or other instrument under
which there may be issued, or by which there may be secured or evidenced any
indebtedness for borrowed money or money due under any long term leasing or
factoring arrangement of the Obligor or any subsidiary of the Obligor in an
amount exceeding $100,000, whether such indebtedness now exists or shall
hereafter be created and such default shall result in such indebtedness becoming
or being declared due and payable prior to the date on which it would otherwise
become due and payable;

(v)	The Common Stock shall cease to be quoted for trading or listed for
trading on either the Nasdaq OTC Bulletin Board ('OTC"), Nasdaq SmallCap Market,
New York Stock Exchange, American Stock Exchange or the Nasdaq National Market
(each, a 'Subsequent Market") and shall not again be quoted or listed for
trading thereon within five (5) Trading Days of such delisting;

(vi)	The Obligor or any subsidiary of the Obligor shall be a party to any
Change of Control Transaction (as defined in Section 4);

(vii)	The Obligor shall fail to file the Underlying Shares Registration
Statement  (as defined in Section 4) with the Commission (as defined in Section
4), or the Underlying Shares Registration Statement shall not have been declared
effective by the Commission, in each case within the time periods set forth in
the Registration Rights Agreement of even date herewith between the Obligor and
the Holder;

(viii)	If the effectiveness of the Underlying Shares Registration Statement
lapses for any reason or the Holder shall not be permitted to resell the shares
of Common Stock underlying this Debenture under the Underlying Shares
Registration Statement, in either case, for more than five (5) consecutive
Trading Days or an aggregate of eight Trading Days (which need not be
consecutive Trading Days);

(ix)	The Obligor shall fail for any reason to deliver Common Stock
certificates to a Holder prior to the fifth (5th) Trading Day after a Conversion
Date or the Obligor shall provide notice to the Holder, including by way of
public announcement, at any time, of its intention not to comply with requests
for conversions of this Debenture in accordance with the terms hereof;

(x)	The Obligor shall fail for any reason to deliver the payment in cash
pursuant to a Buy-In (as defined herein) within three (3) days after notice is
claimed delivered hereunder;

 (b)	During the time that any portion of this Debenture is outstanding, if
 any Event of Default has occurred, the full principal amount of this Debenture,
 together with interest and other amounts owing in respect thereof, to the date
 of acceleration shall become at the Holder's election, immediately due and
 payable in cash, provided however, the Holder may request (but shall have no
 obligation to request) payment of such amounts in Common Stock of the Obligor.
 If an Event of Default occurs and remains uncured, the Conversion Price shall
 be reduced to Ten Cents ($0.10).  In addition to any other remedies, the Holder
 shall have the right (but not the obligation) to convert this Debenture at any
 time after (x) an Event of Default or (y) the Maturity Date at the Conversion
 Price then in-effect.  The Holder need not provide and the Obligor hereby
 waives any presentment, demand, protest or other notice of any kind, and the
 Holder may immediately and without expiration of any grace period enforce any
 and all of its rights and remedies hereunder and all other remedies available
 to it under applicable law. Such declaration may be rescinded and annulled by
 Holder at any time prior to payment hereunder. No such rescission or annulment
 shall affect any subsequent Event of Default or impair any right consequent
 thereon.  Upon an Event of Default, notwithstanding any other provision of this
 Debenture or any Transaction Document, the Holder shall have no obligation to
 comply with or adhere to any limitations, if any, on the conversion of this
 Debenture or the sale of the Underlying Shares.

Section 3.	Conversion.

(a)	(i)	Conversion at Option of Holder.

(A)	This Debenture shall be convertible into shares of Common Stock at the
option of the Holder, in whole or in part at any time and from time to time,
after the Original Issue Date (as defined in Section 4) (subject to the
limitations on conversion set forth in Section 3(a)(ii) hereof). The number of
shares of Common Stock issuable upon a conversion hereunder equals the quotient
obtained by dividing (x) the outstanding amount of this Debenture to be
converted by (y) the Conversion Price (as defined in Section 3(c)(i)).  The
Obligor shall deliver Common Stock certificates to the Holder prior to the Fifth
(5th) Trading Day after a Conversion Date.

(B)	Notwithstanding anything to the contrary contained herein, if on any
Conversion Date:  (1) the number of shares of Common Stock at the time
authorized, unissued and unreserved for all purposes, or held as treasury stock,
is insufficient to pay principal and interest hereunder in shares of Common
Stock; (2) the Common Stock is not listed or quoted for trading on the OTC or on
a Subsequent Market; (3) the Obligor has failed to timely satisfy its
conversion; or (4) the issuance of such shares of Common Stock would result in a
violation of Section 3(a)(ii), then, at the option of the Holder, the Obligor,
in lieu of delivering shares of Common Stock pursuant to Section 3(a)(i)(A),
shall deliver, within three (3) Trading Days of each applicable Conversion Date,
an amount in cash equal to the product of the outstanding principal amount to be
converted plus any interest due therein divided by the Conversion Price and
multiplied by the highest closing price of the stock from date of the conversion
notice till the date that such cash payment is made.

Further, if the Obligor shall not have delivered any cash due in respect of
conversion of this Debenture or as payment of interest thereon by the fifth
(5th) Trading Day after the Conversion Date, the Holder may, by notice to the
Obligor, require the Obligor to issue shares of Common Stock pursuant to Section
3(c), except that for such purpose the Conversion Price applicable thereto shall
be the lesser of the Conversion Price on the Conversion Date and the Conversion
Price on the date of such Holder demand. Any such shares will be subject to the
provisions of this Section.

(C)	The Holder shall effect conversions by delivering to the Obligor a
completed notice in the form attached hereto as Exhibit A (a 'Conversion
Notice").  The date on which a Conversion Notice is delivered is the 'Conversion
Date." Unless the Holder is converting the entire principal amount outstanding
under this Debenture, the Holder is not required to physically surrender this
Debenture to the Obligor in order to effect conversions.  Conversions hereunder
shall have the effect of lowering the outstanding principal amount of this
Debenture plus all accrued and unpaid interest thereon in an amount equal to the
applicable conversion. The Holder and the Obligor shall maintain records showing
the principal amount converted and the date of such conversions. In the event of
any dispute or discrepancy, the records of the Holder shall be controlling and
determinative in the absence of manifest error.

(ii)	Certain Conversion Restrictions.

(A)	A Holder may not convert this Debenture or receive shares of Common
Stock as payment of interest hereunder to the extent such conversion or receipt
of such interest payment would result in the Holder, together with any affiliate
thereof, beneficially owning (as determined in accordance with Section 13(d) of
the Exchange Act and the rules promulgated thereunder) in excess of 4.9% of the
then issued and outstanding shares of Common Stock, including shares issuable
upon conversion of, and payment of interest on, this Debenture held by such
Holder after application of this Section.  Since the Holder will not be
obligated to report to the Obligor the number of shares of Common Stock it may
hold at the time of a conversion hereunder, unless the conversion at issue would
result in the issuance of shares of Common Stock in excess of 4.9% of the then
outstanding shares of Common Stock without regard to any other shares which may
be beneficially owned by the Holder or an affiliate thereof, the Holder shall
have the authority and obligation to determine whether the restriction contained
in this Section will limit any particular conversion hereunder and to the extent
that the Holder determines that the limitation contained in this Section
applies, the determination of which portion of the principal amount of this
Debenture is convertible shall be the responsibility and obligation of the
Holder.  If the Holder has delivered a Conversion Notice for a principal amount
of this Debenture that, without regard to any other shares that the Holder or
its affiliates may beneficially own, would result in the issuance in excess of
the permitted amount hereunder, the Obligor shall notify the Holder of this fact
and shall honor the conversion for the maximum principal amount permitted to be
converted on such Conversion Date in accordance with the periods described in
Section 3(a)(i)(A) and, at the option of the Holder, either retain any principal
amount tendered for conversion in excess of the permitted amount hereunder for
future conversions or return such excess principal amount to the Holder. The
provisions of this Section may be waived by a Holder (but only as to itself and
not to any other Holder) upon not less than 65 days prior notice to the Obligor.
Other Holders shall be unaffected by any such waiver.

(b)	(i)	Nothing herein shall limit a Holder's right to pursue actual
damages or declare an Event of Default pursuant to Section 2 herein for the
Obligor 's failure to deliver certificates representing shares of Common Stock
upon conversion within the period specified herein and such Holder shall have
the right to pursue all remedies available to it at law or in equity including,
without limitation, a decree of specific performance and/or injunctive relief,
in each case without the need to post a bond or provide other security. The
exercise of any such rights shall not prohibit the Holder from seeking to
enforce damages pursuant to any other Section hereof or under applicable law.

(ii)	In addition to any other rights available to the Holder, if the Obligor
fails to deliver to the Holder such certificate or certificates pursuant to
Section 3(a)(i)(A) by the fifth (5th) Trading Day after the Conversion Date, and
if after such fifth (5th) Trading Day the Holder purchases (in an open market
transaction or otherwise) Common Stock to deliver in satisfaction of a sale by
such Holder of the Underlying Shares which the Holder anticipated receiving upon
such conversion (a 'Buy-In"), then the Obligor shall (A) pay in cash to the
Holder (in addition to any remedies available to or elected by the Holder) the
amount by which (x) the Holder's total purchase price (including brokerage
commissions, if any) for the Common Stock so purchased exceeds (y) the product
of (1) the aggregate number of shares of Common Stock that such Holder
anticipated receiving from the conversion at issue multiplied by (2) the market
price of the Common Stock at the time of the sale giving rise to such purchase
obligation and (B) at the option of the Holder, either reissue a Debenture in
the principal amount equal to the principal amount of the attempted conversion
or deliver to the Holder the number of shares of Common Stock that would have
been issued had the Obligor timely complied with its delivery requirements under
Section 3(a)(i)(A). For example, if the Holder purchases Common Stock having a
total purchase price of $11,000 to cover a Buy-In with respect to an attempted
conversion of Debentures with respect to which the market price of the
Underlying Shares on the date of conversion was a total of $10,000 under clause
(A) of the immediately preceding sentence, the Obligor shall be required to pay
the Holder $1,000.  The Holder shall provide the Obligor written notice
indicating the amounts payable to the Holder in respect of the Buy-In.

(c)	(i)	The Holder is entitled, at its option, to convert, and sell on
the same day, at any time, until payment in full of this Debenture, all or any
part of the principal amount of the Debenture, plus accrued interest, into
shares of the Company's common stock, par value $.001 per share, at the price
per share equal to the lesser of (a) an amount equal to One Dollar and Ten Cents
($1.10) (the 'Fixed Price") or (b) an amount equal to eighty percent (80%) of
the lowest Closing Bid Price of the Common Stock for the five (5) trading days
immediately preceding the Conversion Date which may be adjusted pursuant to the
other terms of this Debenture.  Subparagraphs (a) and (b) above are individually
referred to as a 'Conversion Price".

(ii)	If the Obligor, at any time while this Debenture is outstanding, shall
(a) pay a stock dividend or otherwise make a distribution or distributions on
shares of its Common Stock or any other equity or equity equivalent securities
payable in shares of Common Stock, (b) subdivide outstanding shares of Common
Stock into a larger number of shares, (c) combine (including by way of reverse
stock split) outstanding shares of Common Stock into a smaller number of shares,
or (d) issue by reclassification of shares of the Common Stock any shares of
capital stock of the Obligor, then the Conversion Price shall be multiplied by a
fraction of which the numerator shall be the number of shares of Common Stock
(excluding treasury shares, if any) outstanding before such event and of which
the denominator shall be the number of shares of Common Stock outstanding after
such event. Any adjustment made pursuant to this Section shall become effective
immediately after the record date for the determination of stockholders entitled
to receive such dividend or distribution and shall become effective immediately
after the effective date in the case of a subdivision, combination or re-
classification.

(iii)	If the Obligor, at any time while this Debenture is outstanding, shall
issue rights, options or warrants to all holders of Common Stock (and not to the
Holder) entitling them to subscribe for or purchase shares of Common Stock at a
price per share less than the Conversion Price, then the Conversion Price shall
be multiplied by a fraction, of which the denominator shall be the number of
shares of the Common Stock (excluding treasury shares, if any) outstanding on
the date of issuance of such rights or warrants (plus the number of additional
shares of Common Stock offered for subscription or purchase), and of which the
numerator shall be the number of shares of the Common Stock (excluding treasury
shares, if any) outstanding on the date of issuance of such rights or warrants,
plus the number of shares which the aggregate offering price of the total number
of shares so offered would purchase at the Conversion Price. Such adjustment
shall be made whenever such rights or warrants are issued, and shall become
effective immediately after the record date for the determination of
stockholders entitled to receive such rights, options or warrants. However, upon
the expiration of any such right, option or warrant to purchase shares of the
Common Stock the issuance of which resulted in an adjustment in the Conversion
Price pursuant to this Section, if any such right, option or warrant shall
expire and shall not have been exercised, the Conversion Price shall immediately
upon such expiration be recomputed and effective immediately upon such
expiration be increased to the price which it would have been (but reflecting
any other adjustments in the Conversion Price made pursuant to the provisions of
this Section after the issuance of such rights or warrants) had the adjustment
of the Conversion Price made upon the issuance of such rights, options or
warrants been made on the basis of offering for subscription or purchase only
that number of shares of the Common Stock actually purchased upon the exercise
of such rights, options or warrants actually exercised.

(iv)	If the Obligor or any subsidiary thereof, as applicable, at any time
while this Debenture is outstanding, shall issue shares of Common Stock or
rights, warrants, options or other securities or debt that are convertible into
or exchangeable for shares of Common Stock ('Common Stock Equivalents")
entitling any Person to acquire shares of Common Stock, at a price per share
less than the Conversion Price (if the holder of the Common Stock or Common
Stock Equivalent so issued shall at any time, whether by operation of purchase
price adjustments, reset provisions, floating conversion, exercise or exchange
prices or otherwise, or due to warrants, options or rights per share which is
issued in connection with such issuance, be entitled to receive shares of Common
Stock at a price per share which is less than the Conversion Price, such
issuance shall be deemed to have occurred for less than the Conversion Price),
then, at the sole option of the Holder, the Conversion Price shall be adjusted
to mirror the conversion, exchange or purchase price for such Common Stock or
Common Stock Equivalents (including any reset provisions thereof) at issue. Such
adjustment shall be made whenever such Common Stock or Common Stock Equivalents
are issued. The Obligor shall notify the Holder in writing, no later than one
(1)  business day following the issuance of any Common Stock or Common Stock
Equivalent subject to this Section, indicating therein the applicable issuance
price, or of applicable reset price, exchange price, conversion price and other
pricing terms. No adjustment under this Section shall be made as a result of
issuances and exercises of options to purchase shares of Common Stock issued for
compensatory purposes pursuant to any of the Obligor's stock option or stock
purchase plans.

(v)	If the Obligor, at any time while this Debenture is outstanding, shall
distribute to all holders of Common Stock (and not to the Holder) evidences of
its indebtedness or assets or rights or warrants to subscribe for or purchase
any security, then in each such case the Conversion Price at which this
Debenture shall thereafter be convertible shall be determined by multiplying the
Conversion Price in effect immediately prior to the record date fixed for
determination of stockholders entitled to receive such distribution by a
fraction of which the denominator shall be the Closing Bid Price determined as
of the record date mentioned above, and of which the numerator shall be such
Closing Bid Price on such record date less the then fair market value at such
record date of the portion of such assets or evidence of indebtedness so
distributed applicable to one outstanding share of the Common Stock as
determined by the Board of Directors in good faith. In either case the
adjustments shall be described in a statement provided to the Holder of the
portion of assets or evidences of indebtedness so distributed or such
subscription rights applicable to one share of Common Stock. Such adjustment
shall be made whenever any such distribution is made and shall become effective
immediately after the record date mentioned above.

(vi)	In case of any reclassification of the Common Stock or any compulsory
share exchange pursuant to which the Common Stock is converted into other
securities, cash or property, the Holder shall have the right thereafter to, at
its option,  (A) convert the then outstanding principal amount, together with
all accrued but unpaid interest and any other amounts then owing hereunder in
respect of this Debenture into the shares of stock and other securities, cash
and property receivable upon or deemed to be held by holders of the Common Stock
following such reclassification or share exchange, and the Holder of this
Debenture shall be entitled upon such event to receive such amount of
securities, cash or property as the shares of the Common Stock of the Obligor
into which the then outstanding principal amount, together with all accrued but
unpaid interest and any other amounts then owing hereunder in respect of this
Debenture could have been converted immediately prior to such reclassification
or share exchange would have been entitled, or (B) require the Obligor to prepay
the outstanding principal amount of this Debenture, plus all interest and other
amounts due and payable thereon. The entire prepayment price shall be paid in
cash.  This provision shall similarly apply to successive reclassifications or
share exchanges.

(vii)	The Obligor shall maintain a share reserve of not less than one percent
(100%) of the shares of Common Stock issuable upon conversion of this Debenture;
and within three (3) Business Days following the receipt by the Obligor of a
Holder's notice that such minimum number of Underlying Shares is not so
reserved, the Obligor shall promptly reserve a sufficient number of shares of
Common Stock to comply with such requirement.

(viii)	All calculations under this Section 3 shall be rounded up to the nearest
$0.001 of a share.

(ix)	Whenever the Conversion Price is adjusted pursuant to Section 3 hereof,
the Obligor shall promptly mail to the Holder a notice setting forth the
Conversion Price after such adjustment and setting forth a brief statement of
the facts requiring such adjustment.

(x)	If (A) the Obligor shall declare a dividend (or any other distribution)
on the Common Stock; (B) the Obligor shall declare a special nonrecurring cash
dividend on or a redemption of the Common Stock; (C) the Obligor shall authorize
the granting to all holders of the Common Stock rights or warrants to subscribe
for or purchase any shares of capital stock of any class or of any rights; (D)
the approval of any stockholders of the Obligor shall be required in connection
with any reclassification of the Common Stock, any consolidation or merger to
which the Obligor is a party, any sale or transfer of all or substantially all
of the assets of the Obligor, of any compulsory share exchange whereby the
Common Stock is converted into other securities, cash or property; or (E) the
Obligor shall authorize the voluntary or involuntary dissolution, liquidation or
winding up of the affairs of the Obligor; then, in each case, the Obligor shall
cause to be filed at each office or agency maintained for the purpose of
conversion of this Debenture, and shall cause to be mailed to the Holder at its
last address as it shall appear upon the stock books of the Obligor, at least
twenty (20) calendar days prior to the applicable record or effective date
hereinafter specified, a notice stating (x) the date on which a record is to be
taken for the purpose of such dividend, distribution, redemption, rights or
warrants, or if a record is not to be taken, the date as of which the holders of
the Common Stock of record to be entitled to such dividend, distributions,
redemption, rights or warrants are to be determined or (y) the date on which
such reclassification, consolidation, merger, sale, transfer or share exchange
is expected to become effective or close, and the date as of which it is
expected that holders of the Common Stock of record shall be entitled to
exchange their shares of the Common Stock for securities, cash or other property
deliverable upon such reclassification, consolidation, merger, sale, transfer or
share exchange, provided, that the failure to mail such notice or any defect
therein or in the mailing thereof shall not affect the validity of the corporate
action required to be specified in such notice.  The Holder is entitled to
convert this Debenture during the 20-day calendar period commencing the date of
such notice to the effective date of the event triggering such notice.

(xi)	In case of any (1) merger or consolidation of the Obligor or any
subsidiary of the Obligor with or into another Person, or (2) sale by the
Obligor or any subsidiary of the Obligor of more than one-half of the assets of
the Obligor in one or a series of related transactions, a Holder shall have the
right to (A) exercise any rights under Section 2(b), provided that the
Conversion Price re-pricing as provided in Section 2(b) shall only be triggered
upon an Event of Default as provided therein , (B) convert the aggregate amount
of this Debenture then outstanding into the shares of stock and other
securities, cash and property receivable upon or deemed to be held by holders of
Common Stock following such merger, consolidation or sale, and such Holder shall
be entitled upon such event or series of related events to receive such amount
of securities, cash and property as the shares of Common Stock into which such
aggregate principal amount of this Debenture could have been converted
immediately prior to such merger, consolidation or sales would have been
entitled, or (C) in the case of a merger or consolidation, require the surviving
entity to issue to the Holder a convertible Debenture with a principal amount
equal to the aggregate principal amount of this Debenture then held by such
Holder, plus all accrued and unpaid interest and other amounts owing thereon,
which such newly issued convertible Debenture shall have terms identical
(including with respect to conversion) to the terms of this Debenture, and shall
be entitled to all of the rights and privileges of the Holder of this Debenture
set forth herein and the agreements pursuant to which this Debentures were
issued. In the case of clause (C), the conversion price applicable for the newly
issued shares of convertible preferred stock or convertible Debentures shall be
based upon the amount of securities, cash and property that each share of Common
Stock would receive in such transaction and the Conversion Price in effect
immediately prior to the effectiveness or closing date for such transaction. The
terms of any such merger, sale or consolidation shall include such terms so as
to continue to give the Holder the right to receive the securities, cash and
property set forth in this Section upon any conversion or redemption following
such event. This provision shall similarly apply to successive such events.

(d)	The Obligor covenants that it will at all times reserve and keep
available out of its authorized and unissued shares of Common Stock solely for
the purpose of issuance upon conversion of this Debenture and payment of
interest on this Debenture, each as herein provided, free from preemptive rights
or any other actual contingent purchase rights of persons other than the Holder,
not less than such number of shares of the Common Stock as shall (subject to any
additional requirements of the Obligor as to reservation of such shares set
forth in this Debenture) be issuable (taking into account the adjustments and
restrictions of Sections 2(b) and 3(c)) upon the conversion of the outstanding
principal amount of this Debenture and payment of interest hereunder. The
Obligor covenants that all shares of Common Stock that shall be so issuable
shall, upon issue, be duly and validly authorized, issued and fully paid,
nonassessable and, if the Underlying Shares Registration Statement has been
declared effective under the Securities Act, registered for public sale in
accordance with such Underlying Shares Registration Statement. (e)	Upon a
conversion hereunder the Obligor shall not be required to issue stock
certificates representing fractions of shares of the Common Stock, but may if
otherwise permitted, make a cash payment in respect of any final fraction of a
share based on the Closing Bid Price at such time. If the Obligor elects not, or
is unable, to make such a cash payment, the Holder shall be entitled to receive,
in lieu of the final fraction of a share, one whole share of Common Stock.

(f)	The issuance of certificates for shares of the Common Stock on
conversion of this Debenture shall be made without charge to the Holder thereof
for any documentary stamp or similar taxes that may be payable in respect of the
issue or delivery of such certificate, provided that the Obligor shall not be
required to pay any tax that may be payable in respect of any transfer involved
in the issuance and delivery of any such certificate upon conversion in a name
other than that of the Holder of such Debenture so converted and the Obligor
shall not be required to issue or deliver such certificates unless or until the
person or persons requesting the issuance thereof shall have paid to the Obligor
the amount of such tax or shall have established to the satisfaction of the
Obligor that such tax has been paid.

	(g)	Any notices, consents, waivers or other communications required
	or permitted to be given under the terms hereof must be in writing and
	will be deemed to have been delivered:  (i) upon receipt, when delivered
	personally; (ii) upon receipt, when sent by facsimile (provided
	confirmation of transmission is mechanically or electronically generated
	and kept on file by the sending party); or (iii) one (1) trading day
	after deposit with a nationally recognized overnight delivery service,
	in each case properly addressed to the party to receive the same.  The
	addresses and facsimile numbers for such communications shall be:

If to the Company, to:	Mckenzie Bay International, Ltd. 975 Spaulding Avenue

	Grand Rapids, MI 49546

	Attention:       Gregory Bakeman

	Telephone:	(616) 940-3800

	Facsimile:	(616) 940-9194

With a copy to: 	Donald C. Harms, Esq. 37899 12 Mile Road - Suite 300

	Farmington Hills, MI 48331

	Telephone:	(248) 489-1961

	Facsimile:	(248) 489-4163

If to the Holder:	Cornell Capital Partners, LP 101 Hudson Street, Suite
	3700

	Jersey City, NJ  07303

	Attention:	Mark Angelo

	Telephone:	(201) 985-8300

With a copy to:	David Gonzalez, Esq.

	101 Hudson Street - Suite 3700

	Jersey City, NJ 07302

	Telephone:	(201) 985-8300

	Facsimile:	(201) 985-8266

or at such other address and/or facsimile number and/or to the attention of such
other person as the recipient party has specified by written notice given to
each other party three (3) business days prior to the effectiveness of such
change.  Written confirmation of receipt (i) given by the recipient of such
notice, consent, waiver or other communication, (ii) mechanically or
electronically generated by the sender's facsimile machine containing the time,
date, recipient facsimile number and an image of the first page of such
transmission or (iii) provided by a nationally recognized overnight delivery
service, shall be rebuttable evidence of personal service, receipt by facsimile
or receipt from a nationally recognized overnight delivery service in accordance
with clause (i), (ii) or (iii) above, respectively.

Section 4.	Definitions.  For the purposes hereof, the following terms shall
have the following meanings:

'Business Day" means any day except Saturday, Sunday and any day which shall be
a federal legal holiday in the United States or a day on which banking
institutions are authorized or required by law or other government action to
close.

'Change of Control Transaction" means the occurrence of (a) an
acquisition after the date hereof by an individual or legal entity or 'group"
(as described in Rule 13d-5(b)(1) promulgated under the Exchange Act) of
effective control (whether through legal or beneficial ownership of capital
stock of the Obligor, by contract or otherwise) of in excess of fifty percent
(50%) of the voting securities of the Obligor (except that the acquisition of
voting securities by the Holder shall not constitute a Change of Control
Transaction for purposes hereof), (b) a replacement at one time or over time of
more than one-half of the members of the board of directors of the Obligor which
is not approved by a majority of those individuals who are members of the board
of directors on the date hereof (or by those individuals who are serving as
members of the board of directors on any date whose nomination to the board of
directors was approved by a majority of the members of the board of directors
who are members on the date hereof), (c) the merger, consolidation or sale of
fifty percent (50%) or more of the assets of the Obligor or any subsidiary of
the Obligor in one or a series of related transactions with or into another
entity, excluding a sale of Lac Dore Mining Co. or its assets wherein all of the
proceeds of the sale of Lac Dore Mining Co or its assets are retained by the
Obligor for working capital purposes, or (d) the execution by the Obligor of an
agreement to which the Obligor is a party or by which it is bound, providing for
any of the events set forth above in (a), (b) or (c).

'Commission" means the Securities and Exchange Commission.

'Common Stock" means the common stock, par value $.001, of the Obligor and stock
of any other class into which such shares may hereafter be changed or
reclassified.

'Conversion Date" shall mean the date upon which the Holder gives the Obligor
notice of their intention to effectuate a conversion of this Debenture into
shares of the Company's Common Stock as outlined herein.

'Exchange Act" means the Securities Exchange Act of 1934, as amended. 'Original
Issue Date" shall mean the date of the first issuance of this Debenture
regardless of the number of transfers and regardless of the number of
instruments, which may be issued to evidence such Debenture.

'Closing Bid Price" means the price per share in the last reported trade of the
Common Stock on the OTC or on the exchange  which the Common Stock is then
listed as quoted by Bloomberg, LP.

'Person" means a corporation, an association, a partnership, organization, a
business, an individual, a government or political subdivision thereof or a
governmental agency.

'Securities Act" means the Securities Act of 1933, as amended, and the rules
and regulations promulgated thereunder.

'Trading Day" means a day on which the shares of Common Stock are quoted on the
OTC or quoted or traded on such Subsequent Market on which the shares of Common
Stock are then quoted or listed; provided, that in the event that the shares of
Common Stock are not listed or quoted, then Trading Day shall mean a Business
Day.

'Transaction Documents" means the Securities Purchase Agreement or any
other agreement delivered in connection with the Securities Purchase Agreement,
including, without limitation, the Pledge Agreement, and the Investor
Registration Rights Agreement.

'Underlying Shares" means the shares of Common Stock issuable upon conversion of
this Debenture or as payment of interest in accordance with the terms hereof.

'Underlying Shares Registration Statement" means a registration statement
meeting the requirements set forth in the Registration Rights Agreement,
covering among other things the resale of the Underlying Shares and naming the
Holder as a 'selling stockholder" thereunder.

Section 5.	Except as expressly provided herein, no provision of this
Debenture shall alter or impair the obligations of the Obligor, which are
absolute and unconditional, to pay the principal of, interest and other charges
(if any) on, this Debenture at the time, place, and rate, and in the coin or
currency, herein prescribed.  This Debenture is a direct obligation of the
Obligor. This Debenture ranks pari passu with all other Debentures now or
hereafter issued under the terms set forth herein. As long as this Debenture is
outstanding, the Obligor shall not and shall cause their subsidiaries not to,
without the consent of the Holder, (i) amend its certificate of incorporation,
bylaws or other charter documents so as to adversely affect any rights of the
Holder; (ii) repay, repurchase or offer to repay, repurchase or otherwise
acquire shares of its Common Stock or other equity securities other than as to
the Underlying Shares to the extent permitted or required under the Transaction
Documents; or (iii) enter into any agreement with respect to any of the
foregoing.

Section 6.	This Debenture shall not entitle the Holder to any of the rights
of a stockholder of the Obligor, including without limitation, the right to
vote, to receive dividends and other distributions, or to receive any notice of,
or to attend, meetings of stockholders or any other proceedings of the Obligor,
unless and to the extent converted into shares of Common Stock in accordance
with the terms hereof. Section 7.	If this Debenture is mutilated, lost,
stolen or destroyed, the Obligor shall execute and deliver, in exchange and
substitution for and upon cancellation of the mutilated Debenture, or in lieu of
or in substitution for a lost, stolen or destroyed Debenture, a new Debenture
for the principal amount of this Debenture so mutilated, lost, stolen or
destroyed but only upon receipt of evidence of such loss, theft or destruction
of such Debenture, and of the ownership hereof, and indemnity, if requested, all
reasonably satisfactory to the Obligor.

Section 8.	No indebtedness of the Obligor is senior to this Debenture in
right of payment, whether with respect to interest, damages or upon liquidation
or dissolution or otherwise.  Without the Holder's consent, the Obligor will not
and will not permit any of their subsidiaries to, directly or indirectly, enter
into, create, incur, assume or suffer to exist any indebtedness of any kind, on
or with respect to any of its property or assets now owned or hereafter acquired
or any interest therein or any income or profits there from that is senior in
any respect to the obligations of the Obligor under this Debenture.

Section 9.	This Debenture shall be governed by and construed in accordance
with the laws of the State of New Jersey, without giving effect to conflicts of
laws thereof.  Each of the parties consents to the jurisdiction of the Superior
Courts of the State of New Jersey sitting in Hudson County, New Jersey and the
U.S. District Court for the District of New Jersey  sitting in Newark, New
Jersey in connection with any dispute arising under this Debenture and hereby
waives, to the maximum extent permitted by law, any objection, including any
objection based on forum non conveniens to the bringing of any such proceeding
in such jurisdictions.

Section 10.	If the Obligor fails to strictly comply with the terms of this
Debenture, then the Obligor shall reimburse the Holder promptly for all fees,
costs and expenses, including, without limitation, attorneys' fees and expenses
incurred by the Holder in any action in connection with this Debenture,
including, without limitation, those incurred: (i) during any workout, attempted
workout, and/or in connection with the rendering of legal advice as to the
Holder's rights, remedies and obligations, (ii) collecting any sums which become
due to the Holder, (iii) defending or prosecuting any proceeding or any
counterclaim to any proceeding or appeal; or (iv) the protection, preservation
or enforcement of any rights or remedies of the Holder. Section 11.	Any
waiver by the Holder of a breach of any provision of this Debenture shall not
operate as or be construed to be a waiver of any other breach of such provision
or of any breach of any other provision of this Debenture. The failure of the
Holder to insist upon strict adherence to any term of this Debenture on one or
more occasions shall not be considered a waiver or deprive that party of the
right thereafter to insist upon strict adherence to that term or any other term
of this Debenture. Any waiver must be in writing.

Section 12.	If any provision of this Debenture is invalid, illegal or
unenforceable, the balance of this Debenture shall remain in effect, and if any
provision is inapplicable to any person or circumstance, it shall nevertheless
remain applicable to all other persons and circumstances. If it shall be found
that any interest or other amount deemed interest due hereunder shall violate
applicable laws governing usury, the applicable rate of interest due hereunder
shall automatically be lowered to equal the maximum permitted rate of interest.
The Obligor covenants (to the extent that it may lawfully do so) that it shall
not at any time insist upon, plead, or in any manner whatsoever claim or take
the benefit or advantage of, any stay, extension or usury law or other law which
would prohibit or forgive the Obligor from paying all or any portion of the
principal of or interest on this Debenture as contemplated herein, wherever
enacted, now or at any time hereafter in force, or which may affect the
covenants or the performance of this indenture, and the Obligor (to the extent
it may lawfully do so) hereby expressly waives all benefits or advantage of any
such law, and covenants that it will not, by resort to any such law, hinder,
delay or impeded the execution of any power herein granted to the Holder, but
will suffer and permit the execution of every such as though no such law has
been enacted.

Section 13.	Whenever any payment or other obligation hereunder shall be due
on a day other than a Business Day, such payment shall be made on the next
succeeding Business Day.

Section 14.	THE PARTIES HEREBY KNOWINGLY, VOLUNTARILY AND INTENTIONALLY
WAIVE THE RIGHT ANY OF THEM MAY HAVE TO A TRIAL BY JURY IN RESPECT OF ANY
LITIGATION BASED HEREON OR ARISING OUT OF, UNDER OR IN CONNECTION WITH THIS
AGREEMENT OR ANY TRANSACTION DOCUMENT OR ANY COURSE OF CONDUCT, COURSE OF
DEALING, STATEMENTS (WHETHER VERBAL OR WRITTEN) OR ACTIONS OF ANY PARTY.  THIS
PROVISION IS A MATERIAL INDUCEMENT FOR THE PARTIES' ACCEPTANCE OF THIS
AGREEMENT.

IN WITNESS WHEREOF, the Obligor has caused this Secured Convertible Debenture to
be duly executed by a duly authorized officer as of the date set forth above.

	MCKENZIE BAY INTERNATIONAL, LTD.

	By:

	Name:	   Gregory Bakeman

	Title:	  Chief Financial Officer

                                  EXHIBIT 'A"

                              NOTICE OF CONVERSION

        (To be executed by the Holder in order to convert the Debenture)

TO:

The undersigned hereby irrevocably elects to convert $
of the principal amount of the above Debenture into Shares of Common Stock of
Mckenzie Bay International, Ltd., according to the conditions stated therein, as
of the Conversion Date written below. Conversion Date:

Applicable Conversion Price:

Signature:

Name:

Address: Amount to be converted:	$

Amount of Debenture unconverted:	$

Conversion Price per share: 	        $

Number of shares of Common Stock
to be issued:

Please issue the shares of
Common Stock in the following
name and to the
following address:

Issue to: Authorized Signature:

Name:

Title:

Phone Number:

Broker DTC Participant Code:

Account Number:

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