Sakamaki Onsen

Sakamaki Onsen is a hot spring in Nagano Prefecture, in the alpine heartland of the Japanese Alps where the extraordinary concentration of volcanic and geothermal activity beneath the mountain arc generates abundant hot spring resources distributed across dozens of resort valleys and highland communities. Nagano Prefecture is one of Japan's most celebrated hot spring prefectures, home to famous resorts including Matsumoto, Suwa, Norikura, and the Japanese Alps ski areas, and the bicarbonate mineral waters of Sakamaki Onsen represent one of the many distinct thermal sources that contribute to this exceptional heritage in a landlocked mountain prefecture of extraordinary natural beauty. The alkaline, skin-softening character of bicarbonate-rich spring water has made this spring type one of the most appreciated in Japanese bathing culture, valued both for its immediately noticeable sensory effects on the skin and for the relaxing well-being of regular thermal bathing.