Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
FerBicarbonatesManganèse
Hara Onsen / Nekohana no Yu is located in Toyama, in the prefecture of the same name. Its iron-rich water, at 40°C, feeds an indoor bath and an outdoor rotenburo, with a sauna rounding out the facility.
Insider tip — Hara Onsen, also known as Nekohana no Yu, draws iron-rich waters from the Toyama foothills, lending the pools a characteristic amber tinge that locals credit with boosting circulation. The facility has a relaxed neighborhood feel popular with regular patrons. Bring your own towel and enjoy the restorative soak after a day of mountain hiking.