Sarushima (猿島, "Monkey Island"), is a small island located off Yokosuka, Kanagawa in Japan. It is the only natural island in Tokyo Bay. Sarushima was used as a battery by the Tokugawa shogunate during the Edo period, and after the Meiji Restoration in 1868, the island was developed as part of the Yokosuka Navy Yard.[1][2]
Native name:
猿島
Nickname: Monkey Island
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Sarushima from the air
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  Sarushima Show map of Tokyo Bay and Bōsō Peninsula  Sarushima Show map of Kanagawa Prefecture | |
| Geography | |
| Location | Yokosuka, Kanagawa |
| Coordinates | 35°17′10″N 139°41′39″E / 35.28611°N 139.69417°E / 35.28611; 139.69417 |
| Area | 0.055 km2 (0.021 sq mi) |
| Coastline | 1.6 km (0.99 mi) |
| Highest elevation | 39.3 m (128.9 ft) |
| Administration | |
Japan | |
Matthew C. Perry named the island Perry Island in 1853.[3]
Sarushima is now uninhabited, and after World War II, it was developed as a marine park. Swimming and camping facilities were built on Sarushima, which makes it a popular fishing spot. The highest part of the island is still surrounded by a stone wall from the pre-war period, and features the remains of red brick barracks and a powder magazine. The island is accessible by a ferry.[1][2]
