Sarushima

Sarushima
Native name:
猿島
Nickname: Monkey Island
Sarushima from the air
Sarushima
Sarushima
Geography
LocationYokosuka, Kanagawa
Coordinates35°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)
Administration
Japan

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.

Matthew C. Perry named the island Perry Island in 1853.