Matsugashita Miyabi-yu

A natural outdoor hot spring bath is located just west of Shikinejima Port and in between the port and Ashitsuki Onsen. Despite being located almost right on the sea, it is not affected by the tides, and you can also drive a car almost all the way to the bath, making it conveniently accessible. Further, you can use it any time, day or night, 24 hours a day. The bath is supplied by an iron sulfide spring whose waters are said to treat such ailments as nerve pain, rheumatism, and gastrointestinal disorders. There are even toilets and showers nearby. Bathers must wear a swimsuit, so take care not to forget yours. Even if you don't have your suit, however, you can still dip your feet in the water and use it as a soothing footbath. The bath is also lit up in the evening, so be sure to try a nighttime soak if you can.