| 1．Ganryū-jima |
| Ganryū-jima (巌流島, formerly Funa-jima 船島[1]) is an island in Japan located between Honshū and Kyūshū, and accessible via ferry from Shimonoseki Harbor (下関港). |
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| 2．Tsunoshima |
| Tsunoshima (角島) is an island located in the Sea of Japan. Located in the north west of Yamaguchi Prefecture, it is a part of Shimonoseki city. The island has an area of 4.1 square kilometers (1.6 sq mi) and has a coastline of 17.1 kilometres (10.6 mi). The island consists primarily of basalt, and is a part of the Kita-Nagato Kaigan Quasi-National Park.[1] As of 28 August 2008, the population of Tsunoshima is 907.[2][3] |
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| 3．Hikoshima |
| Hikoshima (彦島) (also called Hikishima (引島) in Nihon Shoki) is an island on the south-west tip of Honshu, Japan. |
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| 4．Mutsure Island |
| Mutsure Island (Japanese: 六連島) is an island located directly west of Shimonoseki in the Sea of Japan.[1][2] On March 20, 2024, nine people were killed when a South Korean-flagged tanker Keoyoung Sun loaded with 980 tons of acrylic acid capsized off the island.[3] |
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