Tohei Onsen
Daisen, Akita, Japan
Illustration photo — not a verified picture of this exact spot.
- Location
- Daisen, Akita, Japan
- Water type
- sodium chloride, thermal
- Temperature
- 40 °C
- pH
- 7.3
Water profile
Thermicity
Sedative
LowHigh
Relaxing — deep, immediate muscle release.
Mineralisation
Restorative
LowHigh
Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Tohei Onsen is located in Daisen, Akita Prefecture, at the foot of Mount Chokai. Sodium-chloride thermal water flows at 40°C, shared between an indoor bath, an outdoor rotenburo, and a sauna.
Insider tip — Daisen (大仙市) hosts Japan's most prestigious fireworks competition — the Omagari National Fireworks Competition (held August 23 each year), where master pyrotechnicians compete with elaborate choreographed displays on the Omono River, drawing up to 800,000 spectators in a single evening — one of the largest single-night fireworks events in the world. Tohei Onsen is a tranquil local soak in this Akita plains city.
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 sodium chloride & thermal water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.