Otona no Higaeri Onsen; Ruri no Yu
Minamioguni, Kumamoto, Japan
- Location
- Minamioguni, Kumamoto, Japan
- Temperature
- 44 °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
Otona no Higaeri Onsen, also known as Ruri no Yu, is located in Minamioguni, Kumamoto Prefecture. Sulfurous water reaches around 44°C here, with an indoor bath, an outdoor rotenburo bath and a sauna.
Insider tip — 'Ruri no Yu' (瑠璃の湯 — lapis lazuli spring) at Otona no Higaeri Onsen (adult day-trip onsen) in Minamioguni. Lapis lazuli — the deep blue semi-precious stone traded since ancient times — gives its name to this volcanic spring whose waters carry a faint blue-white tinge from dissolved sulfurous minerals. The soothing atmosphere and spectacular geothermal setting of Minamioguni make it a revitalizing escape for adults seeking tranquility without an overnight stay.
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 sulfurous & thermal water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.