Honami Onsen
Nagano, Nagano, Japan
- Location
- Nagano, 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
Honami Onsen is located in Nagano, Nagano Prefecture, Japan. The bicarbonate water reaches around 40°C, with a pH of about 8. The site features an indoor bath, an outdoor bath (rotenburo) and a sauna.
Insider tip — Honami Onsen is a quiet mountain retreat in the Nagano highlands, where soft bicarbonate waters emerge at a skin-friendly 40°C to nourish and moisturize tired skin. The gentle alkaline quality of these waters is said to be especially beneficial for sensitive complexions. Nestled among cedar slopes, the baths offer serene views of the surrounding Japanese Alps foothills. Visit on a weekday to enjoy the tranquil indoor and outdoor pools without crowds.
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 (idéal automne-hiver).