Ōmijima

Ōmijima is a protected coastal island in Nagato featuring limestone formations, caves, and stone pillars that rise up to 40 meters directly from the water. These geological structures frame the entire perimeter and create a varied landscape of rocks in different shapes and sizes.

The island received official recognition in 1927 as both a Place of Scenic Beauty and a Natural Monument under Japan's Law for the Protection of Cultural Properties. This designation protected its geological features from development and damage.

The distinctive limestone rock formations along the shore, particularly the Juroku-Rakan rocks and the Shimami-mon opening, shape how people experience and photograph the island. Visitors often pause to observe these geological features from the water, making them a central part of the visit.

The island is best viewed from the water, with boat tours available from the nearby shore. Visitors should prepare for changing coastal weather conditions, especially if planning to photograph from the water or from the shoreline.

The local name "Alps of the Sea" comes from the dramatic topography of steep cliffs and rock formations that rise from the ocean. This comparison to a famous mountain range captures the striking height and shape of the stone pillars.

Location: Nagato

GPS coordinates: 34.42894,131.22217

Latest update: December 7, 2025 19:24