Sagara Komare Onsen
- Location
- Sagara, Shizuoka, Japan
- Water type
- bicarbonate, silica, carbonated
- Temperature
- 40 °C
- pH
- 6.3
Water profile
Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Mineralised water — eases movement and joints.
Sagara Komare Onsen offers a triple mineral profile of bicarbonate, siliceous, and naturally carbonated waters—a spring of exceptional mineral complexity that delivers the effervescent stimulation of CO2, the skin-softening luxury of silica, and the gentle alkaline warmth of bicarbonate minerals in a single compact bathing experience. The name—Sedge Plain Small Compact Valley—evokes the intimate, sheltered character of the spring's topographic setting, where small valleys create the kind of protected, concentrated geological environment that allows thermally rich mineral water to accumulate and emerge with particular mineral density. This spring's layered mineral character places it among Japan's more therapeutically complex and physically engaging natural spring discoveries.