Tozandoo Nasu Onsen
Nasu, Tochigi, Japan
- Location
- Nasu, Tochigi, Japan
- Water type
- sulfurous
- Temperature
- 44 °C
- pH
- 6.5
Water profile
Thermicity
Sedative
LowHigh
Relaxing — deep, immediate muscle release.
Mineralisation
Bio-active
LowHigh
Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
Tozandoo Nasu Onsen is located in Nasu, Tochigi Prefecture, a mountainous region north of Tokyo. Its sulfurous water reaches 44°C (pH 6.5), with an indoor bath, outdoor rotenburo and sauna.
Insider tip — Tozandoo Nasu Onsen sits within the famous Nasu volcanic highlands, where acidic sulfurous springs have been celebrated since the Edo period. The waters carry a sharp mineral bite and strong sulfur aroma that signals their volcanic origin. The surrounding Nasu plateau is dotted with ryokan and open-air baths offering sweeping views of forested ridges. Winter visits are especially dramatic, with snow-dusted pine trees framing steaming outdoor pools.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 44 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features sulfurous water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).