Oshima, Volcanic island in Sakai, Japan.
Oshima is a small volcanic island near Sakai with roughly 2 kilometers of shoreline, surrounded by rocky cliffs and thick forests of Japanese cinnamon trees. The island is accessed through a walking path from the Araiso Promenade at Tojinbo, allowing visitors to circle the entire rock formation.
The island formed 13 million years ago from lava flows and displays distinctive columnar rhyolite joints as evidence of its volcanic past. These geometric patterns are especially visible on the western and northern sides, shaping the island's character today.
The Ominato Shrine sits atop steep stone steps marked by a vermillion torii gate, serving as a place of prayer for seafarers and fishers.
The walking path from the Araiso Promenade takes about an hour and circles the island on mostly flat terrain without steep climbs. Sturdy footwear is recommended as some areas can be damp, especially after rain.
Each April, a carved wooden shrine is carried across a bridge to the island to bless maritime safety and fishing harvests. This festival reveals the deep connection between locals and the sea.
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