Sugo Onsen Seizanso
Nishiwaga, Iwate, Japan
Illustration photo — not a verified picture of this exact spot.
- Location
- Nishiwaga, Iwate, 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
Sugo Onsen Seizanso, in Nishiwaga, Iwate Prefecture, draws on a sulfurous spring at 44°C. An indoor bath, an outdoor rotenburo and a sauna complete the offer.
Insider tip — Seizanso at Sugo Onsen serves Nishiwaga-cho in the volcanic Kitakami highland of Iwate Prefecture where the Sugo valley sulfurous springs emerge from the ancient caldera geology of the Kotaro-Mitsuishi volcanic chain. The Nishiwaga mountain community is one of the most remote in Tohoku — accessible through narrow mountain roads closed by snowfall for months each winter — and the Sugo Onsen valley preserves the pristine atmosphere of a mountain thermal community barely touched by modern development, ringed by beech forests that turn spectacular crimson and gold in October.
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.