Oki Islands is an archipelago in the Sea of Japan, which are administratively part of Oki District, Shimane Prefecture.
The main island is 4 islands, but there is about 180 attached small islands. Because there is Tsushima warm current in the sea area to be directly, in the island, transparency of the seawater is outstandingly good.
The schooling of the wandering fish is seen over autumn from summer, so many divers, fishing visitors come from the outside the prefecture.
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