Nakanojo and Shima Potholes and Oku-Shima Lake Blue

Shima Onsen is a famous hot spring with a legend that it heals all four thousand ailments. The Shima potholes at the entrance to the hot spring town are natural sculptural beauty carved by river flow over tens of thousands of years. The Oku-Shima Lake dam lake's clear cobalt blue waters, called 'Shima Blue,' are mysterious and a popular photo spot on social media. It's a hidden gem where you can enjoy both hot springs and natural beauty simultaneously.