Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
CalciumSulfatesMagnésium
Yugawa Onsen rises in Ishikawa Prefecture on the Sea of Japan coast, its name—Hot Water River—describing the characteristic Japanese phenomenon of thermal waters flowing alongside or into surface rivers, creating mixed-temperature zones that sustain unique riparian microclimates along volcanic geological formations. Ishikawa is the home of the Kaga Onsen region, one of Japan's great thermal resort districts, and Yugawa's sulfated waters carry the mineral character of the volcanic geology underlying the Hakusan highland area. The spring offers the restorative qualities of sulfate bathing within a prefecture renowned for refined Kanazawa culture, lacquerware, and the scenic Japan Sea coastline.
Insider tip — Yugawa Onsen issues calcium-sulfate waters along the Noto Peninsula, a UNESCO Globally Important Agricultural Heritage System landscape where traditional satoyama farming and fishing culture remain intact. The mineral-laden water, tinged slightly by limestone, has long been used by Noto fishermen to recover from the physically demanding winter yellowtail (buri) fishing season. The peninsula's stark winter scenery of grey sea and snow-dusted rice paddies provides an austere beauty rarely found at more commercialised onsen destinations.
