Ryushima Onsen; Seseragi no Yu
Matsumoto, Nagano, Japan
- Location
- Matsumoto, Nagano, Japan
- Water type
- bicarbonate
- Temperature
- 40 °C
- pH
- 8
Water profile
Thermicity
Sedative
LowHigh
Relaxing — deep, immediate muscle release.
Mineralisation
Restorative
LowHigh
Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
BicarbonatesSodiumCalcium
Ryushima Onsen; Seseragi no Yu is set in Matsumoto, Nagano Prefecture. The bicarbonate water surfaces at 40°C. An indoor bath, an outdoor bath (rotenburo) and a sauna are offered.
Insider tip — Nestled beside a murmuring alpine stream east of Matsumoto in the Japanese Alps foothills, Seseragi no Yu is prized for its silky alkaline bicarbonate waters that leave skin velvety-smooth; the mountain scenery offers stunning views of the Hotaka range, especially magical at dawn.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 40 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features bicarbonate water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.