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Native name:

Nickname: Monkey Island
The island of Sarushima is golden on a late August day. In the lower right corner a few men on the deck of a boat look back at the island
Sarushima as seen from a boat leaving the island
Sarushima is located in Tokyo Bay and Bōsō Peninsula
Sarushima is located in Kanagawa Prefecture
LocationYokosuka, Kanagawa
Coordinates35°17′10″N 139°41′39″E / 35.28611°N 139.69417°E / 35.28611; 139.69417Coordinates: 35°17′10″N 139°41′39″E / 35.28611°N 139.69417°E / 35.28611; 139.69417
Area0.055 km2 (0.021 sq mi)
Coastline1.6 km (0.99 mi)
Highest elevation39.3 m (128.9 ft)

Sarushima (猿島, Saru-shima, meaning "Monkey Island" in the Japanese language), 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]

Matthew C. Perry named the island Perry Island in 1853.[3]

Sarushima Park[edit]

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 is 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]


  1. ^ a b "猿島" [Sarushima]. Nihon Kokugo Daijiten (in Japanese). Tokyo: Shogakukan. 2012. OCLC 56431036. Archived from the original on 2007-08-25. Retrieved 2012-07-31.
  2. ^ a b "猿島" [Sarushima]. Nihon Daihyakka Zensho (Nipponika) (in Japanese). Tokyo: Shogakukan. 2012. OCLC 153301537. Archived from the original on 2007-08-25. Retrieved 2012-07-29.
  3. ^ "Matthew Calbraith Perry and Yokosuka" (PDF). Yokosuka. p. 9. Retrieved August 13, 2015.

External links[edit]