Kamierara Onsen
Usa, Oita, Japan
- Location
- Usa, Oita, Japan
- Water type
- thermal, sodium chloride
- 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
Kamierara Onsen is located in Usa, Oita Prefecture. The thermal, sodium-chloride water reaches 40°C, with a pH of 7.3. An indoor bath, an outdoor rotenburo bath and a sauna are available on site.
Insider tip — 'Kamierara Onsen' (上江良良温泉 — upper Erara spring) in the Usa city highlands, Oita. The Usa plain, backed by forested mountains through which the thermal springs emerge, has been sacred territory since the 8th century — the great Usa Hachiman Shrine (725 CE) is one of Japan's oldest, with branch shrines across the entire country. These highland springs above the sacred plain carry the mineral richness of the ancient geological formations that produce Usa's distinctive thermal character.
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 thermal & sodium chloride water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.