Koshikishima Natural Hot Spring
The island's only precious natural hot spring, rising from underground on Koshikishima. It combines the characteristics of both a chloride spring, known as a bath for warming the body, and a bicarbonate spring, known as a bath for beautiful skin. It helps remove dirt from the skin, while the salt content helps prevent perspiration from evaporating quickly, so you stay warm even after getting out of the bath. In addition to the indoor bath, there is also an open-air bath where you can enjoy the "toro-yu" while feeling the sounds of nature.