Minamiaso-mura Onsen Center; Winas
Minamiaso, Kumamoto, Japan
- Location
- Minamiaso, Kumamoto, 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
Minamiaso-mura Onsen Center, also known as Winas, is located in Minamiaso, Kumamoto Prefecture. Its sodium-chloride thermal water reaches around 40°C, with an indoor bath, an outdoor rotenburo bath and a sauna.
Insider tip — 'Winas' at Minamiaso-mura Onsen Center in Minamiaso village, inside the southern rim of the Aso Caldera. Minamiaso was severely damaged by the April 2016 Kumamoto earthquakes (M7.3) — the Aso Bridge collapsed, roads buckled, and the community infrastructure was disrupted for years. The village's onsen center was part of the community's recovery infrastructure, providing a gathering place for residents during the long reconstruction. Bathing here is a quiet act of solidarity with a community that rebuilt itself inside an active volcano's crater.
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.