Abstract:
A boat entry assistance system for use with small, manual or paddle or oar powered watercraft (such as canoes and kayaks) is provided with guide rails on either side of a boat positioning unit, such as a boat lift, which can be utilized by a boater to propel his watercraft into the unit. The system includes a specially designed bench system which assists disabled persons with entering and exiting such small watercraft.

Description:
This application is a continuation of co-pending U.S. application Ser. No. 14/645,225 filed Mar. 11, 2015, entitled “Small Watercraft Boatlift” which in turn is a continuation of U.S. application Ser. No. 12/780,473 filed May 14, 2010, entitled “Small Watercraft Boatlift”, (now U.S. Pat. No. 9,051,035), which in turn is a continuation-in-part of Ser. No. 12/557,278 filed Sep. 10, 2009, entitled “Small Watercraft Boatlift”, (now U.S. Pat. No. 8,256,366), which in turn, claims priority to U.S. Provisional App. No. 61/192,142 filed Sep. 16, 2008 and mailed on Sep. 11, 2008, entitled “Small Watercraft Docking Apparatus To Facilitate Boarding And Disembarking”. All of said applications are incorporated herein by reference. 
    
    
     STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT 
     Not Applicable. 
     BACKGROUND OF THE INVENTION 
     This disclosure relates generally to docks and/or boatlifts for small watercraft, and in particular to such dock and/or lifts for use manually or paddle powered boats, such as canoes, kayaks, etc. 
     Boat lifts for small watercraft, such as personal watercraft (PWC&#39;s), kayaks, canoes, etc. typically include cradle for the watercraft which is bounded on at least two sides by decking. The boat lift, in turn, is often part of a docking system, which provides lifts for several watercraft. A popular boat lift is sold by EZ Dock, Inc. under the name EZ Port® and EZ Port Max®. However, those who have impaired leg function or are wheel-chair bound find it difficult to board and disembark watercraft when docked in such boat lifts. Additionally, boatlifts, such as the EZ Port and EZ Port Max rely on power from the motor boat motor to propel the watercraft onto the boat lift. It is difficult to product sufficient energy in manually powered (or rowed) watercraft, such as canoes, kayaks, etc. to propel the canoe, kayak, etc. onto the boat lift. Thus, the boater will need to exit or disembark the boat at the dock, and then maneuver the boat around the dock to the boat lift and pull the boat onto the boat lift. 
     It would therefore be desirable to provide a boat lift for small watercraft which would make it easier for those with impaired leg function or otherwise use a wheel chair to board and disembark from small watercraft. It would also be desirable to provide a boat lift in which oar powered or rowed boats (such as canoes, kayaks, etc.) can be driven or propelled onto a boat lift. 
     BRIEF SUMMARY OF THE INVENTION 
     A boat entry assistance system for manually powered (i.e., such as paddle or oar powered) watercraft is provided. The system includes a boat positioning unit for controlled placement of the watercraft adjacent a boat dock. A bench system is mounted on the boat dock and the boat positioning unit includes an elongate passage for positioning the boat or watercraft adjacent the boat dock, and decking on opposite sides of the passage. The system includes an entrance to the passage. A first guide rail is positioned on one side of the passage and a second guide rail is positioned on a second side of the passage opposite the first side and the first and second guide rails each include an approach portion extending rearwardly of the boat positioning unit. Each guide rail includes at least one grab bar extending generally horizontally along the rail, positioned on the guide rail to be generally at a height where a boater sitting in the watercraft is able to reach the grab bar. The bench system of the boat entry assistance system includes a bench positioned adjacent a first side of the boat positioning unit. The bench has an elongate bench body with a front surface, a back surface, side surfaces, a top surface and a bottom surface, which, in combination, delimit an interior of the bench body. The top surface of the bench body defines a generally horizontal seating portion having a front edge and side edges. The front surface of the bench body defines at least one slot spaced below the front edge of the seating portion which opens into the bench&#39;s interior. The system includes at least one elongate slide, which has a generally planar top surface generally parallel to the bench body&#39;s top surface and elongate sides, and is movable through the at least one slot between a retracted position in which it is substantially received within the bench body&#39;s interior and an extended position. The generally planar top surface of the at least one elongate slide is generally spaced vertically below the top surface of the bench body such that it moves in a substantially horizontal plane below a plane defined by the bench body&#39;s top surface. The slide is configured such that a user can sit on it and dangle his or her legs over at least one of its edges when in its extended position. The system further includes a support member which supports the at least one elongate slide when in its extended position. 
     The support member is generally fixed in a position spaced horizontally from the front surface of the bench body when the at least one elongate slide is in its retracted position at a distance no greater than the length of the at least one elongate slide. 
     The boat entry assistance system of the invention is generally configured so that the at least one elongate slide, when in an extended position, can reach substantially across a boat adjacent to the dock so that a boater can sit on the seat portion and comfortably lower himself or herself into the boat. 
     In certain aspects of the invention, a boatlift for manually powered (i.e., paddle or oar powered) watercraft is provided. The boatlift is a floating boatlift which comprises an elongate cradle, decking on opposite sides of the cradle, an entrance ramp to the cradle, a first guide rail positioned on one side of the cradle and a second guide rail positioned on a second side of the cradle opposite the first side. The first and second guide rails each comprise an approach portion which extends rearwardly of the boatlift ramp and a boatlift portion extending along the boatlift cradle. Each guide rail further comprises at least one grab bar extending generally horizontally along the rail. The at least one grab bar is positioned on the guide rail to be at a height where a boater sitting in a paddle or oar powered watercraft could reach the grab bar. Additionally, the first and second guide rails are spaced apart from each other a distance sufficient to allow a paddle or oar powered boat to pass therebetween, yet allowing a boater to simultaneously grab the grab bars of both the first and second guide rails so that the boater can utilize the grab rails to move the boat between the guide rails. The first guide rail is an inside guide rail and the second guide rail is an outside guide rail. The outside guide rail is longer than the inside guide rail. Specifically, the boat lift portion of the inside guide rail has an end spaced rearwardly of an end of the boatlift, whereas, the outside guide rail has an end which is substantially even with the forward end of the boat lift. 
     In an illustrative embodiment, the guide rails each comprise an upper grab bar and a lower grab bar. The lower grab bar extends at least the length of the approach portion of the guide rails, and can extend to the end of the boatlift ramp (i.e., where the ramp and the cradle meet). The upper grab bar extending at least the length of the boatlift portion of the guide rails, and can extend substantially the length of the guide rail. 
     The boatlift can further include a barrier rail which is associated with the outside guide rail. The barrier rail comprises a horizontal bar spaced above the top bar of the guide rail, and can be mounted to the boatlift decking or to the outside guide rail. If the barrier rail is mounted to the outside guide rail, then the horizontal bar of the barrier rail is higher than it is if the barrier rail is mounted to the boatlift decking. The barrier rail can be independent of or integral with the guide rail. 
     The boatlift can also be provided with an entrance/exit assist member located proximate a forward end of one of the guide rails. The entrance/exit assist member comprises a pair of opposed legs extending upwardly on opposite sides of the boatlift cradle and a cross-member extending between the legs and over the cradle. The legs are of sufficient height such that a paddle or oar powered watercraft can pass under the cross-member, and whereby the cross-member is at a height to be reachable by a boater sitting in the watercraft. 
     The boatlift can also be provided with an entrance/exit assist member located proximate a forward end of one of the guide rails. The entrance/exit assist member comprises a pair of opposed legs extending upwardly on opposite sides of the boatlift cradle and a cross-member extending between the legs and over the cradle. The legs are of sufficient height such that a paddle or oar powered watercraft can pass under the cross-member, and whereby the cross-member is at a height to be reachable by a boater sitting in the watercraft. 
     In addition, the dock to which the boatlift is adjacent can include at least one bench. The bench is positioned to be adjacent the assist member and extends generally perpendicularly to the boatlift. The bench extends from the dock and over an edge of the dock such that a portion of the bench extends over the boatlift cradle. Hence, a boater can sit at the far end of the bench and be positioned over the watercraft. The boater can then use the assist member to help lower himself/herself into the watercraft. 
     In one illustrative embodiment, the bench comprises a bench body having a front surface, a back surface, side surfaces, a top surface and a bottom surface. The front surface extends generally parallel to an edge of the dock and defines at least one slot. Illustratively, the bench upper surface can include a first outer portion and a second inner portion; wherein the inner portion is generally parallel to and vertically below the outer portion. This provides a bench with two different heights. 
     The bench body is supported by legs which are mounted to the decking. The legs can comprise an upper portion and a lower portion which are telescopingly connected. The upper portion can be movable relative to the lower portion such that the effective height of the legs (and hence, the height of the bench) can be changed. 
     The bench body houses at least one extendable/retractable seat member which extends through the at least one slot. The seat member is supported by a support which supports at least one seat member within the bench body to be aligned with the at least one slot so that it may be pulled from the slot to be used. Illustratively, the bench can include two seat members, one being an upper seat member and one being a lower seat member. The front surface of the bench body would include two slots, one slot for each seat member; and two supports within the body to support the two seat members. 
     Preferably, the seat member includes a grab member (such as a handle or tether) at the end of the seat member that is exposed. To facilitate extension and retraction of the seat member, the support comprises low friction elements; preferably in the form of non-moving guide rails which are made of a low-friction material, such as Teflon. 
     The seat member extends from the bench and reaches across the boatlift. A seat member support is positioned on a side of the boatlift opposite the bench to support the seat member when extended. The seat member support comprises at least one horizontal surface upon which the end of the seat member rests when it is extended. The seat member can include an arm which extends generally horizontally from the end of the seat member. The arm then engages the at least one generally horizontal surface of the seat member support when the at least one seat member is extended. In an illustrative embodiment, the seat member support comprises a pair of upwardly extending rails and at least one generally horizontal rung extending between the rails. The at least one rung comprising the at least one generally horizontal surface, and the seat member arm engages the at least one rung. 
    
    
     
       BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS 
         FIG. 1  is a perspective view of a boat lift provided with an illustrative guide rail system; 
         FIG. 2  is a schematic drawing of guide rails of the guide rail system with a plan view of a boat lift and dock; 
         FIG. 3  is a perspective view of one illustrative embodiment of the guide rail system; 
         FIGS. 4 a,b    are perspective view of the guide rail system provided with barrier rails, the two figures showing the barrier rail mounted in two different positions relative to the guide rails; 
         FIGS. 5 and 6  are front and side perspective views of the guide rail system provided with assist members to facilitate entry into and exit from small watercraft and benches on the dock to facilitate use of the assist members; 
         FIG. 7  is a perspective view of a deck fitted with the guide rail system and a second embodiment of a deck bench, the deck bench facilitating embarking and disembarking of disabled boaters; 
         FIG. 8  is an enlarged view of the deck bench and guide rail system; 
         FIG. 9  is an end view of the guide rail system with the deck bench of  FIG. 8  showing a seat member of the deck bench in a fully extended position; 
         FIG. 10  is a perspective view of the bench, with both seat members extended for purposes of illustration; 
         FIG. 11  is a side elevational view of the bench; 
         FIG. 12  is an end elevational view of the bench; 
         FIG. 13  is a cross-sectional view of the bench taken along line  13 - 13  of  FIG. 11 ; and 
         FIG. 14  is a cross-sectional view of the bench taken along line  14 - 14  of  FIG. 12 . 
     
    
    
     Corresponding reference numerals will be used throughout the several figures of the drawings. 
     DETAILED DESCRIPTION OF THE INVENTION 
     The following detailed description illustrates the invention by way of example and not by way of limitation. This description will clearly enable one skilled in the art to make and use the invention, and describes several embodiments, adaptations, variations, alternatives and uses of the invention, including what we presently believe is the best mode of carrying out the invention. Additionally, it is to be understood that the invention is not limited in its application to the details of construction and the arrangements of components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced or being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. 
     A dock system  10  for small watercraft includes a dock  12  and a boat lift  14 . The dock  12  can be a floating dock, such as sold by EZ Dock, and which is comprised of a plurality of dock sections  12   a  which are connected together to form a dock of a desired shape and size. Preferably, the dock system  10  is provided with a gang plank or ramp  13  to facilitate entry onto and exit from the dock  12 . A transition member  15  can be provided between the gang plank  13  and the dock  12 . Such a dock can be made, for example, in accordance with U.S. Pat. Nos. 5,281,055 and 7,234,608 which are incorporated herein by reference. 
     The boat lift  14  is secured to the dock  12 , in accordance with the docking system  10  from which the dock  12  is made. The boat lift  14  comprises a body  16  having a boat cradle  18  which, as shown, extends the length of the boat lift. A deck  19  extends along the outer edge of the cradle  18  on either side of the cradle  18 . The boat lift is preferably a boat lift, such as described in US Pub. No. 20090044740, which is incorporated herein by reference, or which is sold by EZ Dock, Inc. under the name EZ Port Max. An entrance ramp  20  is at one end of the cradle. The cradle  18  has a pair of opposed, inwardly sloping walls  22  with rollers  24  positioned along each wall. The rollers can comprise elongate cylinders  26  ( FIG. 3 ) which extend transversely along the sloping walls of the boat lift cradle  18 . These rollers  26  have inner ends that are proximate the center of the cradle, but which are spaced from each other a sufficient distance to enable the rollers to rotate about an axis. Alternatively, the rollers  26  can be football or torpedo-shaped, such as described in US Pub. No. 20090044739, which is incorporated herein by reference. 
     The boat lift  14  is provided with guide rails  30   a,b  on either side of the cradle  18 . The guide rails  30   a,b  are substantially the same. However, as will become apparent, the guide rail  30   b  is slightly longer than the guide rail  30   a . The guide rail  30   b  can thus be considered an “outside” guide rail which is positioned on the far side of the boat lift  14  from the dock  12 ; and the guide rail  30   a  can be considered an “inside” guide rail which is on the dock side of the boat lift  14 . Although the guide rails  30   a,b  are shown mounted on the right and left sides of the boatlift, respectively (with reference to  FIG. 3 ), the guide rails  30   a,b  could alternatively be mounted on the left and right sides, respectively of the boatlift. The respective placement of the guide rails  30   a,b  depends on which way the boatlift is “facing” or which side of the boatlift is adjacent the dock  12 . 
     The guide rails  30   a,b  are longer than the boat lift  14 , and include an approach portion  32  in front of the boat lift ramp  20 , and a boat lift section  34 . In the outside guide rail  30   b , the boat lift section of the guide rail extends substantially to the end of the boat lift. The inside guide rail  30   a , on the other hand, ends short of the end of the boat lift. As seen in  FIG. 1 , when two boat lifts are connected end-to-end, the shorter inside guide rails provide an pass-through area from the dock  12  through which boaters can pass to access to watercraft. 
     The guide rails each include a top grab bar  36  which extends substantially the full length of the guide rail  30  and a lower grab bar  38  which extends the length of the approach section  32  of the guide rails. The lower grab bar  38  is essentially level with the boat lift deck  19 , and extends substantially the length of the on-ramp section to the cradle  18 . The guide rail additionally can include a front pole  40  at the front end of the guide rail  30  to which both the upper and lower grab bars are connected. ( FIG. 1 ) Alternatively, as seen in  FIG. 2 , the front end of the guide rail can simply be closed by a section of the bar. In this instance, the grab bars  36  and  38  can be formed from a single long section of tubing which is bent to form the two grab bars. Connector posts  42  extend between the upper and lower grab bars  36 ,  38 , and an end post  44  is positioned near the end of the guide rail. On the inside guide rail  30   a , the top grab bar  36  ends at the end post  44 , whereas, on the outside guide rail  30   b , the top grab bar extends beyond the end post  44 . Lastly, the guide rails  30   a,b  include a mounting plate  46  which extends between the two connector posts  42 , and a mounting plate  48  at the bottom of the post  44  to facilitate mounting of the guide rail to the boat lift  14 . The mounting plates  46  and  48  are generally perpendicular to the posts  42  and  44 , such that when the mounting plates are secured to the deck portion  19  of the boatlift  14 , the guide rails  30   a,b  will be generally perpendicular to the boatlift (and will be generally vertical). 
     As shown in  FIGS. 1 and 4   a,b , a barrier rail  50  can be provided. The barrier rail  50  includes a pair of vertically spaced apart, horizontally extending bars  52  which are connected, at their opposite ends, by vertical posts  54 . The barrier rail  50  extends the length of the boatlift cradle  18  (or generally from the end of the boatlift ramp  20  to the opposite end of the boatlift  14 . As shown in  FIG. 4 a   , the barrier rail  50  can be mounted directly to the boat lift, in which case, the barrier rail lower bar is generally level with the upper grab bar of the guide rail approach portion. In this instance, this lower bar of the barrier rail could operate as a continuation of the lower grab bar. Alternatively, as shown in  FIG. 4 b   , the barrier rail can be mounted to the guide rail  30 , such that the bottom of the vertical posts  54  of the barrier rail are approximately level with the top bar of the guide rail. Here, the barrier rail is described as being separate from the guide rail. However, the barrier rail could be formed with, or as a part of, the guide rail. As seen, the barrier rail is associated with the outside guiderail  30   b.    
     As shown in  FIG. 1 , two boat lifts can be connected in tandem to form a single boat lift that is open at both ends. In this instance, one end of the boat lift serves as an entrance, and the opposite end serves as an exit. Alternatively, if the boatlift does not include a ramp at its forward end, as seen in  FIG. 5 , the boatlift can be provided with a stop  60  to prevent the watercraft from being propelled forwardly off the end of the boatlift. The stop  60  can simply be a bar which extends across the forward end of the boatlift between the inside and outside guide rails  30   a,b , as seen in  FIG. 5 . Alternatively, the stop  60  can comprise a bow stop, as disclosed in the above noted US Pub. No. 20090044740, which is incorporated herein by reference. 
     When the guide rails  30  are mounted to the boat lift  14 , the lower grab bars  38  of the approach portion  32  are approximately at the level of the canoe, kayak, etc., so that they can easily be grasped by a boater sitting in the canoe, kayak, etc. Further, the two guide rails are spaced apart a distance which will allow the boat to pass between the rails  30 , yet which will allow the boater to grab both rails at the same time. Hence, by grabbing the lower grab bars  38  of the approach portion of the guide rails  30 , the boater can propel his/her boat forward with sufficient force to drive the watercraft onto the on-ramp of the boatlift. By grabbing a forward section of the grab bars  36 ,  38 , the boater can continue to propel his/her boat along the boatlift until the watercraft (i.e., canoe, kayak, etc.) is fully on the boatlift. As can be appreciated, as the watercraft is propelled onto the boatlift, the level of the watercraft, and hence, the boater, will be raised. Hence, as the boater moves the watercraft along the boatlift, the boater can change from initially using the lower grab bars  38  to using the upper grab bars  36  of the guide rails  30 . When a boater desires to launch the watercraft, the boater need only get into the watercraft, and using the guide rails  30   a,b , propels the boat off the boatlift. In the embodiment of  FIG. 1  (which has ramps at both ends of the boatlift) the boater can go forward, whereas in the embodiment of  FIG. 5  (which has a stop extending across the forward end of the boatlift), the boater will need to go backwards to exit the boat lift. In either case, the rollers facilitate moving the watercraft along the boat lift, such that moving the watercraft along the boatlift is not unduly strenuous. 
     The embodiment of  FIGS. 1-4   b  works well for able bodied boaters. However, it does not facilitate boaters with impaired leg function, are in a wheel chair, or otherwise have difficulty in getting into and out of small watercraft. In  FIGS. 5 and 6 , the boatlift is provided with an entrance/exit assist member  70  comprised of vertical legs  72  and a cross-member  74  extending between the legs  72 . The legs  72  extend upwardly from the boatlift on opposite sides of the boatlift cradle  18 , and the cross-member  74  extends over the cradle  18 . The assist member  70  is positioned at the end of the inside guide rail  30   a . Thus, in  FIGS. 5 and 6 , where two boatlifts are interconnected, and the inside guide rails form a pass through area, the assist members  70  are at this pass-through area. As seen, a boat can pass under the assist members  70 . The assist members  70  are sized such that the cross-member  74  is at a height which will allow for a boater sitting on a bench in the boat to reach up and grab the cross-member  74 . 
     The dock is further provided with a pair of benches  76   a,b  positioned adjacent the assist members  70 . The benches  76   a,b  extend across a portion of the dock  12  so that the benches can be used by people on the dock  12 . In addition, the benches  76   a,b  extend past the edge of the dock and over the decking of the boatlift, such that the edge of the benches are over the gunwales of the boat. In  FIGS. 5 and 6 , the benches  76   a,b  are of different heights, with the bench  76   b  being higher than the bench  76   a . This allows for the benches to accommodate people of different abilities. For example, one of the benches may be easier for someone in a wheelchair to use, while the other bench may be easier for someone who walks, but otherwise needs assistance in getting into and out of the watercraft. 
     To use the entry/exit assist, the boat is positioned at the pass-through between the inside guide rails  30   a  with the boat seats generally beneath the assist members  70 . With the boat in position, a boater can seat himself/herself on one of the benches  76   a,b  and slide over to the edge of the bench. By holding on to the cross-member  74 , the boater can lower himself/herself from the bench  76   a,b  to the boat seat. 
     An alternative bench  100  is shown generally in  FIGS. 7-9  mounted on a deck platform  102 . The bench  100  includes an elongate body  104  defining front  104   a , back  104   b , sides  104   c , bottom  104   d  and top  104   e  surfaces. A pair of legs  106  extend downwardly from the body  104  to support the bench body  104  above the surface of a deck  102 . Upper and lower slots  105   a,b  are formed in the bench body front surface  104   a . As best seen in  FIG. 9 , the bench body  104  extends beyond the edge of the deck platform  102 , such that the front surface  104   a  of the bench body  104  is approximately flush with the inside guide rail  30   a.    
     A seat member support  110  in the form of a ladder is positioned on the opposite side of the boatlift  14  from the bench  100 . The ladder  110  includes a pair of side rails  112  which extend up from the surface of the boat lift  14  and a plurality of rungs  114  extending between the rails  112 . As will be described in more detail below, the bench  100  includes extendable/retractable seat members  116   a,b  which extend across the boatlift  14  from the front surface  104   a  of the bench  100  to be supported by one of the rungs  114  of the ladder  110 . The seat members, as seen, define a generally planer top surface having elongate side edges. As described below, the seat members are configured so that a boater can sit on the seat member (when it is extended) to lower him/herself into a watercraft. Conversely, the boater can raise him/herself out of the watercraft to then sit on the extended seat member. 
     The seat members  116   a,b  are stored within the bench body  104 , and extend and retract through the slots  105   a,b  in the bench body front surface  104   a . The seat members  116   a,b  are accessible through the slots  105   a,b  when the seat members are stored in the bench body. The seat members can be retracted fully into the body (and be reached through the slots) or the seat member can protrude slightly from the slot when the seat member is in a retracted position. As will be described below, when extended, the seat members  116   a,b  reach or extend across the boatlift  14  to enable a disabled boater (such as one who does not have use of his/her legs) to get in and get out of a small boat, such as a kayak or a canoe. To facilitate extending of the seat members  116   a,b , each seat member includes a grip  117 . The grips  117  are shown as flexible loops, but could comprise handles, pull rods, etc. The seat members also include arms  118  at the end of each seat member. The arms  118  extend from the seat members such that they are generally flush or level with the top surface of the seat members. The arms  118  rest on the rungs  114  of the ladder  110  when the seat members are extended. The grips  117  are illustratively mounted to the ends of the arms  118 . As can be appreciated, the arms  118 , and the connection between the arms  118  and the seat members  116   a,b  are sufficiently robust to support a person on the seat member with the seat member extended. 
     The bench  100  is shown in more detail in  FIGS. 10-14 . The bench top surface  104   e  includes a first portion  120   a  and a second portion  120   b . The second portion  120   b  extends over the edge of the deck, and the first portion  120   a  extends inwardly from the inner end of the second portion  120   b . As seen, the second portion  120   b  is below the first portion  120   a . Preferably, the bench top second portion  120   b  is no more than about 5″ (about 12.7 cm) below the bench top first portion  120   a . As is clear from the drawings, the bench top second portion is spaced below the first portion, and forward of the first portion, such that both the first and second portion are accessible at the same time. The bench  100  is designed for use by persons who do not have the use of their legs (such as paraplegics). It has been determined that the average maximum height a person can raise him or herself off a surface using his or her arms is about 5″. Hence, the bench top first surface is about 5″ above the bench top second surface. 
     Wheel chairs have one of two typical seat heights. Hence, the different heights of the bench top surface enable users of wheel chairs with either seat height to more easily transfer from their wheel chairs to the bench. Thus, one who uses a wheel chair having a higher seat height can transfer from his/her wheel chair to the higher first surface  120   a  of the bench top  104   e ; and one who uses a wheel chair having a lower seat height can transfer from his/her wheel chair to the lower second surface  120   b  of the bench top  104   e . Hence, the difference in height between the two benches is designed to enable a disabled individual to elevate himself or herself from the lower bench top  120   b  to the upper bench top  120   a  (or vice versa), just by pushing up with his/her arms. 
     Turning to  FIGS. 12-14 , internally, the bench body  104  includes lower cross-members  122   a - c  which are spaced apart, and extend across, the body bottom surface  104   d . As seen in the drawings, the lower cross-members extend substantially the full width of the bench body, between the opposite side surfaces  104   c . The lower seat member  116   b  rests (and slides) on the lower cross-members  122   a - c . Hence, the upper surface of the cross-members  122   a - c  is substantially even or flush with the lower edge of the lower slot  105   b  in the body front surface  104   c . Rails  124  are positioned on either side of the seat member  116   b  to maintain alignment of the seat member  116   b  within the bench body. The upper seat member  116   a  is supported by (and slides on) cross-members  126   a - c  which extend the width of the bench body between the side surface  104   c . The upper cross-members  126   a - c  can be fixed to the side surfaces  104   c . To maintain the upper seat member  116   a  in vertical alignment upper slot  105   a  of the front surface, the upper surface of the cross-members  126   a - c  is substantially even or flush with the lower edge of the upper slot  105   a  in the body front surface  104   c . Rails  128  are mounted to the top of the cross-members on either side of the seat member  116   a  maintain the horizontal position of the seat member  116   a  relative to the body and the front upper slot  105   a . To facilitate sliding of the seat members  116   a,b , the supports and rails are preferably made from a low friction material, such as Teflon. 
     Although supports (in the form of cross-members) and rails are shown to maintain the vertical and horizontal position of the seat members  116   a,b  in the bench body  104 , the seat members could be supported by other means. For example, the seat members could be supported by rails, which, could be formed from L-beams, for example. Such L-beams would also be made from a low friction material, such as Teflon. The use of a low friction material avoids the use of moving parts, which may have a shortened life in marine environments. However, if desired, cross-members  122   a - c  and  126   a - c  could be replaced with rollers. Alternatively, spaced apart bearing assemblies could be provided on which the seat members  116   a,b  slide. 
     The use of low friction guides, whether the low friction guide be made from a low friction material or be comprised of rollers or bearing assemblies, allows for the seat members to be extended from, and retracted into, the bench body easily. This is relatively important, because when exiting a water craft, the boater will be below, and in front of the seat members, and hence, will have to reach up to grasp the seat member, and will have to extend the seat member behind the boater. 
     In use, when a boater is entering a kayak or canoe that is positioned in the boat lift  14 , the boater will first extend one of the two seat members  116   a,b  until the arm  118  of the seat member is positioned on a rung  114  of the ladder  110 . With the seat member supported at one end by the bench  104  and at the opposite end by the ladder  110 , the boater can slide out over the kayak or canoe on the extended seat member  116   a,b . Once the boater is over the seat of the kayak or canoe, the boater can lower himself/herself into the boat. 
     To exit a small boat, the boater will approach the boat lift  14 , and position the small boat on the boat lift such that the boater is slightly in front of the bench  100  and ladder  110 . With the boater so positioned, the boater can reach up and pull out the seat member. The seat member will extend behind the boater. When the seat member is positioned, the boater can raise himself/herself up onto the extended seat member  116   a,b . Once the boater is on the seat member, the boater can then scoot over towards the bench body  104 . 
     As noted there are two seat members  116   a,b . Only one seat member will be extended at a time. The seat member that is extended will depend on the size of the boat the boater is entering or exiting. If the boat seat is low, the boater may use the lower seat member  116   b . If the boat seat is higher, the boater may use the upper seat member  116   a.    
     To add greater flexibility to the use of the bench  100 , the legs  106  are telescoping legs. The legs comprise a lower section  106   a  and an upper section  106   b . Illustratively, the upper leg section is received in the lower leg section, but this could be reversed. The leg sections can include a series of discrete holes and pins which extend through the holes when aligned. Any other alternative structure of changing the effective length of the legs can be used as well. Preferably, the legs allow for a change in effective length of about 5″. 
     As various changes could be made in the above constructions without departing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense. For example, although the inside guide rail  30   a  is described to be mounted or secured to the boatlift, the inside guide rail  30   a  could be secured to the edge of the dock  12 . Although the guide rails include upper and lower grab bars, the guide rails could each be provided with a single grab bar. In this case, the single grab bar would preferably be contoured, such that the section of the grab bar in the approach portion of the guide rail is below the section of the grab bar in the boatlift portion of the guide rail. These examples are merely illustrative.