Ōkunoshima is a small island located in the Inland Sea of Japan in the city of Takehara, Hiroshima Prefecture. It is often called Usagi Shima (ウサギ島?, "Rabbit Island") because of the numerous wild rabbits that roam the island; they are rather tame and will approach humans. Many rabbits live in the island. When the island was developed as a park after World War II, these rabbits were intentionally set loose. There are campsites, walking trails and places of historical interest on the island.