Yonehara Onsen

Yonehara Onsen is a natural hot spring on Ishigaki Island in the Yaeyama archipelago, Okinawa Prefecture — the southernmost group of Japanese islands, set in the warm subtropical waters of the East China Sea between Taiwan and the Philippine Sea. The sulfurous thermal waters emerge from the volcanic and geothermal geology of the Ryukyu island chain, offering a hot spring bathing experience in the heart of a tropical paradise characterized by coral reefs, mangrove forests, and some of Japan's clearest and most biodiverse waters. Ishigaki is renowned as a world-class diving destination, and Yonehara Beach — the area directly associated with the onsen — is famous for its magnificent coral reef, sea turtles, and the characteristic manta rays that gather seasonally in the channel. Yonehara Onsen is a uniquely tropical Japanese hot spring experience, where the warmth of geothermal waters meets the extraordinary marine biodiversity of Okinawa's most spectacular coral coast.