Mayama Onsen Koen Ponpoko no Yu
Nakano, Nagano, Japan
- Location
- Nakano, 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
Mayama Onsen Koen Ponpoko no Yu, in Nakano, Nagano Prefecture, draws bicarbonate water at 40°C. Visitors can use an indoor bath, an outdoor bath (rotenburo) and a sauna.
Insider tip — Mayama Onsen Koen Ponpoko no Yu draws smooth bicarbonate waters in the apple-orchard landscape of northern Nagano, famed for its snow monkey parks nearby. The playful name references the tanuki (raccoon dog) of Japanese folklore, giving the bathhouse a cheerful local identity. Waters here are gentle and popular with families as well as older guests. Try the outdoor rotenburo in winter for a quintessential Nagano experience with snow-dusted mountains as backdrop.
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).