“80 Years After the War: Kanagawa’s Wartime Ruins Today—Tokyo Bay’s Former Fortress Becomes a Scenic Spot on Sarushima Island, Yokosuka”

Sarushima (猿島), meaning “Monkey Island,” is a small, uninhabited island located in Tokyo Bay, Japan, near Yokosuka. It is the only natural island in the bay and was historically used as a military fortress during the Edo period and later by the Imperial Japanese Navy. Today, it is a popular tourist destination known for its lush greenery, hiking trails, and historic ruins, including old gun batteries and tunnels.

Tokyo Bay is a large natural harbor on the southern coast of Japan’s Honshu Island, playing a key role in Japan’s maritime trade and defense for centuries. It gained global prominence after Commodore Matthew Perry’s arrival in 1853, which led to Japan’s opening to the West. Today, the bay is a bustling economic hub, home to major ports, industrial zones, and landmarks like the Rainbow Bridge and Odaiba.