Mashiguchi Onsen Gongenso
Minakami, Gunma, Japan
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- Location
- Minakami, Gunma, Japan
- Water type
- iron-rich, sodium chloride
- Temperature
- 41 °C
- pH
- 6.3
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
Effortless float
LowHigh
Dense, salty water — you float without effort.
FerBicarbonatesManganèse
Mashiguchi Onsen Gongenso is located in Minakami, Gunma Prefecture. Its iron-rich, sodium-chloride waters, at 41°C, are available in an indoor bath and an outdoor rotenburo, with a sauna on site.
Insider tip — Minakami in the northern Gunma mountains is Japan's prime outdoor adventure destination — the headwaters of the Tone River, surrounded by ski resorts, hot springs, and the dramatic Tanigawa massif, just 2 hours from Tokyo. Mashiguchi Onsen Gongenso draws on the complex iron-rich and sodium-chloride mineral waters of this volcanic zone at the gateway to one of Japan's most challenging mountains, where thermal bathing has been the reward for wilderness travellers since the Edo period shrine complexes were established here.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 41 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features iron-rich & sodium chloride water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.