Oshino Onsen; Hanamaru no Yu
Ōita, Oita, Japan
Illustration photo — not a verified picture of this exact spot.
- Location
- Ōita, Oita, Japan
- Temperature
- 43 °C
- pH
- 6.5
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.
SoufreSulfuresSulfates
Oshino Onsen, known as Hanamaru no Yu, is located in the city of Ōita, in Oita Prefecture, a volcanic region famous for its hot springs. Its sulfurous thermal water reaches 43°C (pH 6.5), with an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — Oita city and its surroundings form the epicenter of Japan's most geothermally active landscape — Beppu, with its eight distinct spring zones, lies just north, and the Ooita plain's aquifer draws from the same volcanic system. Hanamaru no Yu (Circle of Flowers Bath) in the Oshino area combines the abundant geothermal energy of the Oita volcanic zone with a rural onsen character removed from Beppu's tourist infrastructure. The nearby Ooita Stadium and the forested Tsurumi highlands frame the setting.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 43 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features sulfurous & thermal water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.