, also known as in the Oomoto religion, is an island in the Sea of Japan administered under Maizuru in Kyoto Prefecture. It is about 2 km from Kutsujima, a similar smaller island. is located just midway between islands. A breeding ground for streaked shearwaters, the island was designated a Japanese natural monument (天然記念物, tennen-kinenbutsu) in 1924. It has also been recognised as an Important Bird Area (IBA) by BirdLife International. Currently, the island is designated as Kanmurijima-Kutsujima wildlife protection area and any landing is prohibited. A recreational diving service is available though.kanmurijima.com 大型高速ダイビングボートで音海港より冠島まで25分、アサグリまで15分、音海ポイントなら5分でご案内
History According to records of Tango no kuni fudoki, Kanmurijima and Kutsujima are the remains of a much larger island which submerged following an earthquake in 701 A.D. The topography of the seafloor seems to support the claim, as the steep 60-metre cliff is located underwater off the eastern coast of Kanmurijima and Kutsujima, indicating a recent crustal fault.
Sacred site Kanmurijima is a sacred pilgrimage site in the Oomoto religion. In Oomoto, the name of the island is pronounced differently as Oshima, although it is still written using the same kanji characters (冠島).
See also
Amanohashidate Kutsujima Desert island List of islands
References
Kyoto Prefecture (in Japanese).