A National Natural Monument in northern Sado Island. The breathtaking scenery of countless potholes of varying sizes, carved by the relentless waves of the Japan Sea, is truly awe-inspiring.
The Hiranesaki Wave-Erosion Potholes are a National Natural Monument in northern Sado Island. The relentless pounding of the Japan Sea waves over countless years has eroded the bedrock, creating a breathtaking landscape of potholes of all sizes. These potholes (also known as pot holes) create a mystical atmosphere, resembling an ancient ruin, and leave visitors in awe. You can experience the beauty of these natural formations, shaped by the power of the waves, up close. This location symbolizes the abundant nature of Sado Island and is also known as a power spot. A visit here allows you to truly feel the energy of nature. Legends are also associated with this place, underscoring its reverence among the people since ancient times. The Hiranesaki Wave-Erosion Potholes are a must-see destination when visiting Sado Island.