Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Dense, salty water — you float without effort.
Tsushima Island Onsen is located on Tsushima, a mountainous island in the Korea Strait between Kyushu and the Korean Peninsula — so close to South Korea that Korean tourists make up the majority of visitors and Tsushima has become known as 'the island where Japan and Korea meet,' with a history of cultural exchange, diplomatic missions, and maritime trade connecting the two civilisations over 2,000 years. The chloride-rich coastal hot spring waters draw from geothermal resources in the island's ancient granite mountain geology, providing warm saline baths in an island of extraordinary natural beauty where over 90% of the land is covered by dense sub-temperate forest, and the endemic Tsushima leopard cat (Tsushima yamaneko) roams the mountain ridges. Tsushima's profound geographical position between two civilisations, its pristine natural environment, and its coastal hot spring tradition make it one of the most geopolitically and ecologically distinctive onsen destinations in the entire Japanese archipelago.