Shinshu Takayama Onsenkyo; Koyasu Onsen
Takayama, Nagano, Japan
- Location
- Takayama, Nagano, Japan
- Water type
- bicarbonate
- Temperature
- 41 °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
Shinshu Takayama Onsenkyo, or Koyasu Onsen, is located in Takayama, Nagano prefecture. Bicarbonate water with a pH of 8 flows here at 41°C between an indoor bath and a rotenburo, with an on-site sauna.
Insider tip — Koyasu Onsen means the spring of easy delivery, and its gentle bicarbonate waters have long been sought by expectant mothers throughout Shinshu. Located in the Shinshu Takayama Onsenkyo spa village, it is one of several thermal springs clustered in this mountain enclave of Nagano.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 41 °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.