Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
FerBicarbonatesManganèse
Yuraku Onsen is located in Wakayama, in the prefecture of the same name. Its iron-rich water at 41°C feeds an indoor bath and an outdoor rotenburo, with an on-site sauna.
Insider tip — Yuraku Onsen is a popular urban bathhouse in coastal Wakayama city, tapping iron-rich groundwater from deep beneath the Kii Peninsula. The amber-tinted baths are prized for their warming, joint-easing properties, making them especially popular with older residents and those recovering from physical exertion. Wakayama is the gateway to the Kumano Kodo pilgrimage trails, and many modern-day pilgrims choose to begin or end their walk with a restorative soak here. The facility's no-frills atmosphere and genuine mineral content make it a favourite over more touristic alternatives in the region.