Tennen Onsen; Amanogawa
Beppu, Oita, Japan
- Location
- Beppu, Oita, Japan
- Water type
- iron-rich
- Temperature
- 44 °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
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
FerBicarbonatesManganèse
Tennen Onsen (Amanogawa), in Beppu, Oita prefecture, draws iron-rich water at 44°C. The facility comprises an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — Amanogawa, Milky Way Onsen, draws high-temperature iron-rich water from the geothermal powerhouse of Beppu, one of the world's greatest onsen cities with eight distinct geothermal zones. The iron content gives the bath water a distinctive reddish-amber hue that immediately signals its mineral richness. Beppu's springs are among the most productive in Japan, and the perpetual wisps of steam rising from manholes throughout the city set an otherworldly tone. Visiting multiple different onsen types in a single day is a local tradition here, and Amanogawa's vivid water makes an impressive inclusion in any Beppu onsen crawl.
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 iron-rich water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).