Kojima (Hokkaido)

Ko Island (小島, Ko-jima) or Kojima is an uninhabited island in the Sea of Japan, 23 kilometres (14 mi) southwest of the mainland portion of the town of Matsumae and is the southernmost point in Hokkaidō. It is under the administration of the town of Matsumae in Oshima Subprefecture in Hokkaidō, Japan. To distinguish Ko Island from other islands with the same name, it is sometimes known as Oshima Ko Island (渡島小島, Oshima-Kojima) or Matsumae Ko Island (松前小島, Matsumae-Kojima). Several smaller islets surround Ko Island, including Daihiyakushima, Shohiyakushima, Tenjinshima, and Sazaeshima.

Kojima (Hokkaido)

Ko Island (小島, Ko-jima) or Kojima is an uninhabited island in the Sea of Japan, 23 kilometres (14 mi) southwest of the mainland portion of the town of Matsumae and is the southernmost point in Hokkaidō. It is under the administration of the town of Matsumae in Oshima Subprefecture in Hokkaidō, Japan. To distinguish Ko Island from other islands with the same name, it is sometimes known as Oshima Ko Island (渡島小島, Oshima-Kojima) or Matsumae Ko Island (松前小島, Matsumae-Kojima). Several smaller islets surround Ko Island, including Daihiyakushima, Shohiyakushima, Tenjinshima, and Sazaeshima.