Soothing — neither hot nor cold, perfect balance.
Loaded with major ions — the essential minerals (Ca, Mg).
Soft water — natural, classic buoyancy.
Terao Onsen is a hot spring in Japan whose bicarbonate and simple mineral waters provide the alkaline, skin-softening and gently relaxing bathing that characterizes this widely distributed and broadly appealing spring type within the Japanese hot spring classification system. The combination of bicarbonate mineral alkalinity with the fundamental warmth and purity of simple geothermal water creates a bathing medium that is accessible to bathers of all ages while still providing the genuine mineral character that distinguishes natural hot spring water from ordinary heated water. Terao Onsen represents the tradition of community hot spring bathing in Japan where the mineral waters of natural geothermal springs, even those of moderate mineral content, are valued as local resources for physical and social well-being, sustaining the communal bathing culture that has been central to Japanese daily life from the earliest periods of recorded history.