Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Dense, salty water — you float without effort.
Yatate Onsen in Odate City, Akita Prefecture was a formerly operating thermal spring situated directly below Yatate Pass, the mountain crossing on the Akita-Aomori prefectural border that has historically served as one of the most important traversal points between Tohoku's Pacific and Japan Sea sides, giving this spring the character of a traditional waystation onsen where travelers crossing the demanding mountain pass found rest and recovery in naturally heated spring water. The spring's connection to the ancient highway crossing at Yatate Pass places it within the longstanding Japanese tradition of wayside onsen at mountain passes and road junctions, where geothermal water was understood as a practical gift of the earth to those engaged in the demanding physical labor of cross-mountain travel before the advent of modern transportation. Yatate Onsen represents the historical category of Japanese thermal springs defined by their service to mountain travelers rather than their aesthetic or therapeutic appeal, a tradition of practical geothermal hospitality that has sustained wayside bathing culture at Japan's mountain crossings since the earliest periods of organized overland travel.