Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Dense, salty water — you float without effort.
Nozawa Onsen is one of Japan's most authentic and atmospheric hot spring villages, preserved as a national scenic area in Nagano Prefecture, where thirteen public bathhouses called 'soto-yu' are fed by community-owned chloride thermal springs that flow freely for all residents and visitors without charge. Kumatani is among these revered bathhouses, offering sodium-chloride mineral waters renowned for their skin-softening and circulation-warming effects, sustaining a bathing tradition that has persisted here for over a thousand years. The village's wooden architecture, boiling springs used for cooking, and winter ski slopes create a uniquely Japanese cultural fusion that makes Nozawa Onsen an extraordinary living heritage of thermal bathing culture.