Pub.305 sup.

Sailing Directions
for Coast of Kyushu

Supplement No.2

17 February 2023

Japan Coast Guard

Explanatory Notes
Sailing Directions for Coast of Kyushu - Supplement No.2 is issued to correct the outdated informationin Publication No.305 Sailing Directions for Coast of Kyushu which was published in March 2022.
This supplement contains the information which has been gathered through the work of Hydrographic
and Oceanographic Department, Japan Coast Guard by 25 November 2022.
The instructions for amending, deleting or adding of the previous issues are indicated in this
supplement. This supplement also contains an index to be referred to the pages on which they are
mentioned. The index is listed in numerical order, along with the titles of the ports or articles.
Amendments are indicated in red letter on grey background while deletions are marked with strikethrough,in red letter on grey background. Chart images, tables or pictures to be delated, replaced or added are
instructed in [square brackets].
Each sheet of the supplements is excerpted from the relevant issue of the Sailing Directions so that thepage number printed in the supplement is corresponding to the original page number. In case that a sheet
had spanned multiple pages by adding large volume of text or image, sub-number is given to the page
number.

17 February 2023

Hydrographic and Oceanographic Department,
Japan Coast Guard

Caution
This supplement is for use in conjunction with Notices to Mariners, List of Aids to Navigation, andrelated charts and publications, because no corrections are given thereto except through supplements.
Especially for updated information concerning the safety of navigation instructed by Japan Coast
Guard, please refer to Notices to Mariners and related publications.

In the interest of ensuring the safety of navigation and protecting the marine environment, the Japan
Coast Guard (JCG) publicises information that could affect the safety of navigation and environmental
protection by issuing Notices to Mariners (NTMs) and Navigational Warnings (NWs), and publishingsuch information on the JCG charts and in other nautical publications, based on laws, regulations,proclamations, charts, NTMs, NWs issued by countries concerned as well as reports made by ships.
Sailing Directions published by JCG are intended solely for the purpose of providing information forsafe navigation. The contents included in the Sailing Directions do not reflect the Japanese Government’s
official stance regarding the laws, regulations, and proclamations of other countries.

Supplement No.2
INDEX

Sailing Directions
for Coast of Kyushu

Updated parts (title, port name, etc.)

Page
19

Fisheries

20

Marine Accidents

99

Kumamoto Ko

104

Misumi Ko

107

Channels between Shimabara Wan - Yatsushiro Kai

141

Shibushi Ko

153

Naze Ko

154

Naze Ko
Blank below

17 February 2023

Remarks

Chapter 8

19

PREVENTION OF MARINE ACCIDENTS

2. The line of “Law Relating to the Enforcement of Sovereign Rights for Fisheries, etc. in Exclusive Economic
Zone” (excluding FW1009)
3. The lines of fisheries agreement of Japan and the Republic of Korea (Article 3, issued on 22nd January 1999)
4. The lines of fisheries agreement of Japan and the People's Republic of China (Article 2, issued on 1st June
2000) (excluding Charts FW162 and FW196)
The relevant charts for fishery use are shown as follows:
Chart No.

Title of the chart

FW162
FW196
FW210
FW1009

Scale

Western Part of Japan Sea
Kanmon Kaikyo to Busan Hang
Nagasaki to Xiamen
Nippon and the Adjacent Seas

1 / 1,200,000
1 / 250,000
1 / 1,500,000
1 / 5,000,000

Chapter 8 PREVENTION OF MARINE ACCIDENTS
Marine Accidents
Around the coast of Kyushu and Nansei Shoto, a considerably greater number of marine accidents occur as aresult of summer and autumn typhoons compared to other sea areas. Also the proportion of accidents involving
foreign vessels is particularly high.
Areas in which marine accidents commonly occur.
Name of Area
Approaches to Kanmon Ko

Kurara Seto

Fukuoka Wan

Genkai Nada

Kind of accidents

Remarks

Collisions of medium-sized vessels.
Collisions of small vessels.

Many accidents involving all kind ofvessels.
Many shallows and shoals. Mariners
passing this area for the first timemust exercise caution. In particular,
there are many groundings of various
vessels in the sea area from
Ji-no-Shima to Kane-no-Misaki.

Collisions of small vessels.
Stranding of medium-sized vessels.
Stranding of small vessels.

Collisions of medium-sized vessels.
Collisions of small vessels.
Stranding of medium-sized vessels.
Stranding of small vessels.
Capsizing of small vessels.
Collisions of large vessels.
Collisions of medium-sized vessels.
Collisions of small vessels.

Approaches to
Yobuko (33°33′N 129°53′E)

Collisions of small vessels.
Stranding of medium-sized vessels.
Stranding of small vessels.

Hirado Seto

Collisions of medium-sized vessels.
Collisions of small vessels.
Stranding of medium-sized vessels.
Stranding of small vessels.

Congested area, and various types ofmarine accidents occur.

Collisions between one fishing boat
and another, also between fishingboats and cargo vessel often occur.
The channel is curved, and there are
dangerous offline shoals.
Many accidents involving cargovessels and fishing vessels.
Many shoals, in the curved channel.
Many accidents involving cargovessels and fishing vessels. Mariners
passing through this area for the firsttime must exercise caution.

20Part 1 GENERAL INFORMATION

Misumi and the S part of
Amakusa-Kami Shima

Collisions of small vessels.
Stranding of small vessels.
Collisions of medium-sized vessels.
Collisions of small vessels.
Stranding of small vessels.
Capsizing of small vessels.
Collisions of small vessels.
Stranding of small vessels.
Collisions of small vessels.
Stranding of small vessels.

Approaches to Hondo Ko

Stranding of small vessels.

Sasebo-Nagasaki coast

Approaches to Nagasaki Ko

Approaches to Goto Retto

Approach to Yatsushiro Kai

Approaches to
Ushibuka(33°12′N 130°02′E)
S Part of Okinawa Shima
N Part of Miyako Shima
S Part of Ishigaki Shima

Collisions of large vessels.
Collisions of medium-sized vessels.
Collisions of small vessels.
Stranding of large vessels.
Stranding of medium-size vessels.
Stranding of small vessels.
Collisions of small vessels.
Stranding of small vessels.
Stranding of medium-sized vessels.
Stranding of small vessels.

Many accidents involving all kind ofvessels.
Many accidents involving pleasureboats and fishing vessels.
Many accidents involving fishingboats.
Many accidents involving pleasureboats and fishing boats.
Many accidents involving pleasureboats.
Various types of marine accidents
occur. Many shallows and shoals.
Mariners passing this area for the firsttime must exercise caution.
Many accidents involving pleasureboats, etc. and fishing boats.
Many coral reefs and shoals exist.
Even experienced mariners must
proceed carefully.

Maritime Search and Rescue Organisations
Japan Coast Guard Japan Coast Guard is in charge of “Crisis Management at Sea”; it has 5 missions:maintaining public order, traffic safety at sea, search and rescue operations, maritime disaster prevention andenvironmental protection, coordination and cooperation with domestic and overseas organisations concerned.
The sea adjacent to Japan is divided into 11 regions each of which has its Regional Coast Guard Headquarters.
Contact list of the headquarters and subordinate departments is as follows :Regional Headquarters
7th Regional Coast Guard Headquarters
1-3-10, Nishi-Kaigan,
Moji-ku, Kitakyushu-shi
TEL (+81-93-321-2931)

10th Regional Coast Guard Headquarters
4-1,Higashi-korimoto-cho,Kagoshima-shi
TEL (+81-99-250-9800)

Coast Guard Office
Fukuoka(+81-92-281-5865)
Miike(+81-944-53-0521)
Karatsu(+81-955-74-4321)
Nagasaki(+81-95-827-5133)
Sasebo(+81-956-31-4842)
Tsushima(+81-920-52-0643)
Kagoshima(+81-99-222-6680)
Kumamoto(+81-964-52-3103)

Coast Guard Station
Hitakatsu(+81-920-86-2113)
Hirado(+81-950-22-3997)
Goto(+81-959-72-4999)
Imari(+81-955-28-3388)
Iki(+81-920-47-0508)

Air Station
Kita-Kyushu(+81-93-474-7006)

Yatsushiro(+81-965-37-1477)
Amakusa(+81-969-73-4999)

Kagoshima(+81-995-58-2541)

Chapter 1

COAST OF KYUSHU

99

Kumamoto Ko (32 46′ N 130 34′ E) (Chart W171) (Port code; JP KMP)

（Photographed in Dec. 2019）

Specified
port

Port
designatedby PortRegulations
Law

Open port○○

Quarantine
port

Immigration
port

Domestic
animalquarantine
port

Plant
protection
portImportant
port

○

○

○

Outline Located on the E part of the head of Shimabara Wan. The harbour is in the artificial island currently underconstruction, will serve as a distribution port directly connented to the Kumamoto urban area. The area nearby is alarge tideland. There are fishing ports, namely, Okishin, Yoban and Ujiguchi, in the rear of this harbour.
Passage The passage to Shinminato from W has width of about 200m with a depth of between 4.5m and 8m. Twolight buoys mark the entrance of the passage. Submarged jetties, marked by yellow lights, situated on the both side ofthe entrance of the passage.
Facilities
Name

Position

No.1 Quay (-5.0m)
No.2 Quay (-5.0m)
No.3 Quay (-5.5m)
No.4 Quay (-5.5m)
No.5 Quay (-7.5m)

32° 45.8′ N 130° 35.4′ E
32° 45.7′ N 130° 35.3′ E
32° 45.7′ N 130° 35.2′ E
32° 45.7′ N 130° 35.0′ E

Length(m)

Depth(Approx. m)

Capacity(D/W  vessel)

236
120
180
89
130

2-5
2.5-4.5
3-5
4.5-6
7.5

1,000t×2
700t×22,000t×2
2,000t×1
5,000t×1

Remarks
Exclusive for ferries

Gantry craneTyphoon and tsunami safety measures In order to prevent disasters due to typhoon, tsunami and other abnormal
weather, Typhoon and Tsunami Countermeasure Committee of Kumamoto Ko and its surrounding waters is establishedand they manages typhoon and tsunami damage prevention countermeasures, such as the communication of typhoonand tsunami information, warnings, and the imposition and lifting of evacuation advisories for all vessels in the harbour.
(Inquiries: Kumamoto Coast Guard Office)Maritime authorities
Name
Telephone
Kumamoto Sub-Branch, Yatsushiro Branch of Nagasaki Customs+81-96-322-3004
Kumamoto Branch Office of Fukuoka Regional Immigration Services Bureau+81-96-362-1721
Kumamoto port administrative Office, Kumamoto Prefectual Government+81-96-329-4411
Maritime Traffic Car ferries (850-1,674t)of 697t, 848t and 1,687t, are operated between Kumamoto Ko andShimabara Ko which is located on the opposite shore.

104Part 3

COASTAL ROUTES AND HARBOURS

Misumi Ko (32 36′ N 130 28′ E) (Chart W194) (Port code; JP MIS)

(Photographed in Nov. 2019）

Specified
port

Port
designatedby PortRegulations
Law

○

○

Open port

Quarantine
port

Immigration
port

○

○

○

Domestic
animalquarantine
port

Plant
protection
portImportant
port

○

○

Outline Misumi Ko is a good natural harbor located on the SW extremity, and is connecting to Shimabara Wan andYatsushiro Kai. It is enclosed by Oyano Shima, Iwa Shima and Tobase Shima. The port on the E side after passing
through the narrowest section of Misumi-no-Seto is called the W port and a port on the E side of the narrow channel
that winds further S is called the E port. The main quays of Misumi Ko are in the E port.
There are various channels connecting Misumi Ko including Misumi-no-Seto, Zozo-no-Seto, Motare-no-Seto andUto-no-Seto. Those channels, other than Misumi-no-Seto and Zozo-no-Seto, are shallow and used by local fishingboats and regular-scheduled liners.
Facilities
Name

Position

A Quay (-10.0m)
B Quay (-9.0m)
C Quay (-9.0m)
Shin C Quay (-7.5m)
Shin B Quay (-5.5m)
Shin A Quay (-4.5m)
Ferry Quay (-4.5m)
Hata Wharf Quay (-4.5m)

32° 36.3′ N 130° 28.0′ E
32° 36.3′ N 130° 27.8′ E
32° 36.3′ N 130° 28.1′ E
32° 36.3′ N 130° 28.2′ E
32° 36.4′ N 130° 28.2′ E
32° 36.4′ N 130° 28.3′ E
32° 36.5′ N 130° 28.8′ E

Capacity

LengthDepth(m)(Approx. m)(D/W  vessel)

170
165
165
220
90
60
60
240

10
8-8.5
6.5-7
7.5
5
4.5
3-4

12,000×1
10,000t×1
10,000t×1
15,000t×1
2,000t×1
700t×1700t×1700t×4

Remarks

Anchorage There are two quarantine anchorages: one is lying N of the N end of Misumi-no-Seto, the other is lying
about 0.8M S of S end of Zozo-no-Seto.
The W port is not a good anchorage as it is affected by wind and waves from the N and at its frontage tidal streams
are strong and the water is too deep.
At the E port, when winds blow from the S, some wind and waves get into the port from outside, however, it almost
never affected by strong wind as it is protected from other winds by islands mentioned above and the mountains of the
Uto Hanto.
Weather and Climate Northerly winds prevail throughout the year however, southerly winds occur from springthrough summer.
Pilotage Pilotage can be arranged through the Shimabara Kaiwan Pilot Association. (See “Chapter 6 Pilotage” inPart 1)

Chapter 1

COAST OF KYUSHU

107

and Iwa Shima lying NE of Amakusa-Kami Shima, separated by a strait. On W of Amakusa-Kami Shima,
Amakusa-Shimo Shima is situated.
Michigoe-no-Seto (32° 33.0′ N 130° 23.9′ E) (Chart W208) is a channel about 1.5M long with a depth of 11-21m in
its centre part, whose N side is formed by the S shore of Oyano Shima, E of Michigoe-no Seto is the continuation of
Yanagino Seto. Takamoku Shima is cone-shaped small island. This island’s SW coast is formed by white cliffs. The
peak is the highest point in the vicinity and also prominent. Takamoku Shima is a good mark for the approach to
Ikeshima-no-Seto from Shimabara Wan. The narrowest part of Michigoe-no-Seto is in the vicinity of Oyano-hashi
Bridge (about 14m in height). There is an overhead cable (about 22m in height) spans the channel, W of Oyano-hashi
Bridge.
Yanagi-no-Seto (32° 32.7′ N 130° 26.1′ E) (Chart W208) is a channel lies between the S coast of Oyano Shima andFunabito Shima (32° 32.3′ N 130° 26.2′ E, 22m in height). The E of Yanagi-no-Seto is the continuation of Otono Seto
and Yokoshima-no-Seto, between Funabito Shima and the W of the Yanagi-no-Seto is the continuation ofMichigoe-no-Seto, Ikeshima-no-Seto and Maruko-no-Seto.
Uto-no-Seto (32° 32.1′ N 130° 27.7′ E) (Chart W208) is part of the Yatsushiro Kai on the E and connects to
Yanagi-no-Seto and Yokoshima-no-Seto on the W. A channel with over 5m of depth is about 700m wide. The center ofthe channel is about 30m in depth. Overhead cables (39m in height) cross the center of the channel.
Ikeshima-no-Seto (32° 32.1′ N 130° 24.8′ E) (Chart W208) is a channel which is about 2.8M long, whose W
entrance is located between Takamoku Shima and Biro Shima, and its E entrance is located between E end of Nagaura
Shima and Funabito Shima. The E part of Ikeshima-no-Seto is devided into the N and the S. The S channel is called
Maruko-no-Seto, which is used by local small boats. Biro Shima (32° 32.1′ N 130° 22.8′ E, 25m in height), which lies
S of Ikeshima-no-Seto, serves as a good mark for identifying Ikeshima-no-Seto.
Akamatsu-no-Seto (32° 31.8′ N 130° 26.4′ E) (Chart W208) is not suitable as a passage due to the shallow depths ofaround 2m scattered in the mid-channel.
Aitsu Ko lies on the N coast of Amakusa-Kami Shima and on the S side of Akamatsu-no-Seto opposite Mae Shima,
whose NW entrance continues to Maruko-no-Seto and NE entrance continues to Akamatsu-no-Seto.
Hondo Seto (32° 26.4′ N 130° 12.4′ E) (Chart W1252) is a channel lies between Amakusa-Kami Shima andAmakusa-Shimo Shima, and is designated as a Waterways to be Developed and Preserved, provided in Port Regulation
Law. This channel has a maintained depth of 4.5m covering a width of 50m in order to allow the navigation of ships of
700D/W. The maximum range of tide is about 3m. There are shallows on E and W of the channel and the channel has
many blind corners. The N entrance lies on the W of Hondo Ko Light Beacon. A lifting bridge (32° 26.7′ N 130° 12.3′
E, 17m in height) lies about 1.2km S of the N entrance to the channel. It is manned continuously from 0600 to 2030
(April through September), 0630 to 2000 (October through March). The bridge is raised as required to permit passage.
Amakusa Seto O-hashi (16 to 17m in height) situated 270m N of the lifting bridge. The Amakusa Seto O-hashi No.2
bridge (tentative name, 17m in height, under construction) lies a position of about 450m N of the Amakusa Seto
O-hashi bridge.
The width of the water with over 10m of depth is about 300m within the Yokoshima Seto (32° 23′ N 130° 14′ E)(Chart W174), which leads to Yatsushiro Wan from Hondo Seto. The N section of the Yokoshima Seto is surrounded by
Amakusa-Kami Shima and Amakusa-Shimo Shima. It is 5-20m in depth with a good bottom in the section. There areaquaculture facilities along the coast within the bay.

Nagashima Kaikyo - Yatsushiro Kai (Charts W174, W178, W206)
Outline The centerline of the Nagashima Kaikyo, Hachiman Seto and Gannoshiri Seto forms the border between
Kumamoto and Kagoshima prefectures and is regularly used by large vessels. Karajiro Seto is regulaly used by small

Chapter 1

COAST OF KYUSHU

141

Facilities
Name
Honko
(Main port)

Gaiko(Outer port)

Wakahama

ShinWakahama-5m Quay-5.5m Quay
A Quay (-5.5m)
B Quay (-7.5m)
C Quay (-10m)
D Quay (-7.5m)
E Quay (-8.5m)
Passenger Vessel Wharf(-7.5m)No.1 Quay(-12m)
No.2 Quay(-9m)
No.3 Quay
Wakahama(-8m)
CentralNo.4 Quay
Wharf(-7.5m)No.5 Quay(-5.5m)Quay(-4.5m)No.1 Quay
Wakahama (-7.5m)
S WharfNo.2 Quay(-5.5m)ShinWakahama
Wharf

No.1 Quay(-14m)

Position
31° 28.5′ N
131° 06.7 ′E
31° 28.3′ N
131° 06.5 ′E
31° 28.1′ N
131° 06.3 ′E

31° 27.9′ N
131° 06.1′ E

31° 27.5′ N
131° 05.5′ E

31° 27.1′ N
131° 05.3′ E

Length(m)

Depth(Approx.m)

Capacity(D/W  vessel)

135
100
270
130

3.5-5
4
2-5.5
7-7.5

1,0002
2,0001
2,0003
5,0001185

9

15,0001

260
200

7
4-8.5

5,0002
14,0001

220

7.5

15,0001240

1230,0001

165

8-9

10,000175

7.5

5,0001315

7.5

5,0002180

5.5

2,0002

120

-

4502

130

7.5

5,000190

5.5

2,0001280

14

50,0001

Remarks

For Ro-Ro
ships

Aseismicquay

For ferries

For
container
vessels,
2 cranes

In addition to the above, there are 2 dedicated dolphins (maximum capacity of 65,000D/W) at the S side of the
Wakahama S Wharf in the Wakahama section. In order to enhance the security of the port including the facilities usedby foreign trading vessels, some areas are designated as prohibited entry areas.
Tugboats Tugboasts are available.
Supply Fresh water can be supplied.
Typhoon and tsunami safety measures In order to prevent disasters from typhoon, tsunami and other abnormal
weather, Typhoon and Tsunami Countermeasure Committee of Shibushi Ko and Uchinoura Ko is established and they
manages typhoon and tsunami damage prevention countermeasures, such as the communication of typhoon andtsunami information, warnings, and the imposition and lifting of evacuation advisories for all vessels in the harbour.
(Inquiries: Shibushi Coast Guard Station)
Maritime authorities and facilities
Name
Telephone
Shibushi Coast Guard Station+81-99-472-4999
Shibushi Sub-branch, Kagoshima Branch Customs+81-99-472-1689

153

Chapter 2 NANSEI SHOTO

Amami-O Shima (28 16′ N 129 27′ E) (Chart W225)
Outline It is a northernmost island in the Amami Gunto with few flat areas. Akakina Hanto, the NE part of theisland , is joined to the main part by a low isthmus so that from N or S it appears as an island.
The coast of Amami-O Shima is generally cliffy, and steep-to and coral reefs extend between 200-1,000m offshoreof the coast N of the central section and some of them dry at half-tide or low water.

Naze Ko (28 23.8′ N 129 30.1′ E) (Chart W1202) (Port code; JP NAZ)

(Photographed in Sep. 2019)

Specified
port

Port
designatedby PortRegulations
Law

○

○

Open port

Quarantine
port

Immigration
port

Domestic
animalquarantine
port

Plant
protection
port○Importantport○

Outline This port lies on the NW coast of Amami-O Shima. From the vicinity of the port entrance it extends
inward about 2M to the S. Also, there is a branch bay that extends inward about 0.8M to the E from the E coast within
the port. There is the Daikuma Gyoko in the head of the port.
Landmarks
Landmark

Position

Tachigami

28 24.5′ N 129 29.9′ ERadio tower28 24.1′ N 129 29.5′ E

Shinko passenger terminal28 23.3′ N 129 29.7′ E

Remarks
Black conical islet.
There is an ex-lighthouse at the peak.
281m in height.
White. Two story building. Many lights are turned onwhen regularly scheduled vessels berth or unberth.

Facilities
Name

Nagahama Passenger Vessel Quay
Honko No.1 Quay
Honko No.2 Quay

Position

Length(m)

Depth(Approx. m)

Capacity(D/W×vessel）

28°23.5′N
129°29.8′E

280

10

30,000×1

185

9-10

10,000×1

For ferries

185

13-14

10,000×1

Under
construction

28°23.2′N
129°29.7′E

Remarks

154Part 3

COASTAL ROUTES AND HARBOURS

Shinko No.3 Quay

160-

2,000×1

90

-

80t×1

140

5.5

2,000×1100

5.5

2,000×1

Sadaikuma C Quay

100

5.5

2,000×1

Sadaikuma D Quay

130-

2,000×1

28°23.0′N
129°29.7′E

Honko C Quay
Sadaikuma A Quay
Sadaikuma B Quay

28°23.7′N
129°30.3′E

Aseismicquay

Communication
Call nameFrequency

Hours of operation

Remarks

KAGOSHIMA COAST GUARD RADIO

16/12ch24hours

Amami Coast Guard Office(Captain of the port)

Typhoon and tsunami safety measures In order to prevent disasters due to typhoon, tsunami and other abnormal
weather, Typhoon and Tsunami Countermeasure Committee of Naze Ko is established and they manages typhoon andtsunami damage prevention countermeasures, such as the communication of typhoon and tsunami information,
warnings, and the imposition and lifting of evacuation advisories for all vessels in the harbour. (Inquiries: Amami Coast
Guard Office)Supplies Fresh water can be supplied at major quays. And fuel oil barges are also available.
Maximum size of vessel handled Cruise ship “Sun Princess” (77,441t, with a draught of 8.1m) berthed on the
Nagahama Passenger Vessel Quay on 1st May 2014.
Medical facility
Name

TelephoneKagoshima Prefectural Oshima Hospital

Remarks+81-997-52-3611

Maritime authorities and facilities
Name

Telephone

Amami Coast Guard Office (Captain of the Port)
Construction Division, Construction Department, O Shima Sub-prefectual Government
Naze Branch, Moji Plant Protection Station
Naze Observation Station, Kagoshima Customs Sub-station, Nagasaki Customs+81-997-52-5811+81-977-57-7332+81-997-52-0459+81-997-53-3271

Maritime traffic Ferries and passenger liners on the routes of Hanshin - Okinawa (operation suspended), andKagoshima - Ports in Amami Gunto - Okinawa call in at Naze.

Oshima Kaikyo (28 10.1′ N 129 16.6′ E) (Chart W230)
Outline This is a deep strait with a length of 13M, width of 0.5 to 2M wide between the NE side of Kakeroma
Shima and the SW side of Amami-O Shima. This strait provides a good refuge anchorage during typhoons. But,
caution is required, because the whole area of the bay is narrow and deep except for the parts in front of Kuji andKoniya.
There are many aquaculture facilities on both sides of the strait.