Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
FerBicarbonatesManganèse
Yamaga Onsen Sakura Yu, in Yamaga, Kumamoto, draws its iron-rich water from a spring at 40°C, pH 6.3. It offers an indoor bath, an outdoor rotenburo pool and a sauna.
Insider tip — Yamaga Onsen Sakura Yu is the historic public bath at the heart of Yamaga, a castle-town in Kumamoto known for its annual lantern festival. Iron-rich waters flow colorlessly from the source and leave a subtle mineral warmth on the skin. The elegant wooden bathhouse, rebuilt in traditional Meiji style, is worth visiting as much for its architecture as for the warm, convivial atmosphere of this beloved local gathering place.