Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
FerBicarbonatesManganèse
Yamashiro Onsen Soyu is a public bathhouse in the hot-spring town of Yamashiro, Ishikawa Prefecture. The iron-rich water reaches 41°C and fills an indoor pool, an outdoor rotenburo and a sauna.
Insider tip — Yamashiro Onsen is one of the three great onsen of Kaga, renowned for its iron-rich waters that impart a warm amber hue. The Soyu public bathhouse at the heart of the resort district offers an authentic communal soak at an accessible price. The mineral-laden water is prized for improving circulation and relieving joint fatigue. Arrive in the early morning to enjoy the baths nearly to yourself before day-trippers arrive.