Kochomon

Kochomon is a natural tunnel carved through thick rock layers that extends toward the Sea of Japan along the Echizen coastline in Fukui Prefecture. The formation features a cave opening facing the water and creates different viewing points of the surrounding coastal landscape.

A historic transport route once passed beneath the arch, which was later converted into a pedestrian pathway for closer observation. This shift in use reflects how the site transformed from a functional passage into a destination for viewing the rock formation.

The arch stands near Suisen-no-Yashira shrine, where local residents venerate Aizenmyoo and connect the natural landscape to their spiritual beliefs. This location shows how the coastal rock formation remains woven into the religious life of the region.

Access to the natural arch is free throughout the year without entry fees. Winter months bring strong waves from the sea that can affect conditions around the rock formation.

The formation contains a cave with an opening that faces the sea, allowing visitors to view the coastal landscape from multiple angles. This interior structure creates distinct perspectives as you move through the natural passage.