Tennen Onsen Ashiyu
Shōwa, Gunma, Japan
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- Location
- Shōwa, Gunma, Japan
- Water type
- thermal
- Temperature
- 40 °C
- pH
- 7.3
Water profile
Thermicity
Sedative
LowHigh
Relaxing — deep, immediate muscle release.
Mineralisation
Balancing
LowHigh
Rich in trace elements — gentle on the skin.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
BicarbonatesCalcium
Tennen Onsen Ashiyu, in Shōwa Village, Gunma Prefecture, carries natural thermal water at 40°C (pH 7.3). An indoor bath, an outdoor rotenburo and a sauna round out this mountain retreat.
Insider tip — A natural hot spring foot bath (ashiyu) in Showa-mura, Gunma, at the gateway to Oze National Park. Free to use and open to all — a perfect warm-up after hiking the vast wetland plateau or in winter before snowshoeing.
Nearby
Kaneman Yasuragi Center; Numata Okaya Onsen
Numata, Gunma
Shirasawa Kogen Onsen Bokyo no Yu
Shirasawa Highlands, Numata, Gunma
Ikaho Onsen Ishidan-dori
Shibukawa, Gumma
Shiokawara Onsen
Nikko, Tochigi
Shikishima Onsen; Utopia Akagi
Shibukawa, Gunma
Yunotaira Onsen Minakami
Yunotaira, Minakami, Gunma Prefecture
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 thermal water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.