八釜の甌穴群

The Yagama Giant's Kettles consist of 35 cylindrical potholes formed in solid bedrock, with eight notably large depressions reaching depths of 14 meters.

These natural formations developed over time through the continuous rotation of stones driven by water currents in the Omogo River's tributary, the Kurokawa.

The site received designation as a Special Natural Monument of Japan due to the exceptional concentration of multiple potholes in a single location.

Visitors access the site through a forest walking path near Route 440, which requires appropriate footwear and takes approximately 40 minutes to reach.

The largest pothole in the formation measures between 9 to 12 meters in diameter and contains clear blue-green water throughout the year.

Location: Kumakogen

GPS coordinates: 33.52469,132.99253

Latest update: March 8, 2025 21:03