Tennen Onsen; Corona no Yu Odawara
Odawara, Kanagawa, Japan
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- Location
- Odawara, Kanagawa, 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
Tennen Onsen Corona no Yu, in Odawara, Kanagawa Prefecture, features natural sodium-chloride water at 40°C. Indoor and outdoor rotenburo baths are complemented by a sauna.
Insider tip — Odawara Castle withstood Japan's most famous siege: in 1590, Toyotomi Hideyoshi encircled it with 200,000 troops for three months before the Hojo clan surrendered — completing his unification of Japan. The reconstructed castle dominates the city skyline. Corona no Yu Odawara taps natural springs just west of the castle grounds. Odawara is also famous for its kamaboko (fish cake) industry, the freshest Sagami Bay catch, and the start of the mountain road into Hakone.
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.