Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Dense, salty water — you float without effort.
Aimagawa Onsen, including its Fureaikan bath, is set in Takasaki, Gunma Prefecture. The sodium-chloride, thermal water flows at 40°C, pH 7.3. An indoor bath, an outdoor rotenburo bath and a sauna are available.