Oshima Ōshima

What it is

• An uninhabited volcanic island located in Matsumae Town, Hokkaido.
• The largest uninhabited island currently under Japanese administration.
• A designated national natural monument protecting streaked shearwaters.
• Part of the Matsumae-Yagoshi Prefectural Natural Park.

What to see

• A volcano featuring a distinct horseshoe-shaped caldera.
• Era-dake, the highest peak rising 737 meters above sea level.
• The westernmost point of Hokkaido at the island's western tip.
• A lighthouse and heliport located on the southern part of the island.
• A fishing port completed on the eastern shore in 2022.

When to go

• Landing requires advance permission from the Agency for Cultural Affairs.

Notes written by Japan Gems from facts in Japanese Wikipedia.