Jukai Onsen; Hakua
Mukawa, Hokkaido, Japan
- Location
- Mukawa, Hokkaido, Japan
- Water type
- sodium chloride
- Temperature
- 42 °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
Jukai Onsen Hakua, in Mukawa (Hokkaido), offers sodium-chloride water at 42°C. The facility brings together an indoor bath, an outdoor rotenburo bath and a sauna.
Insider tip — Mukawa-cho became world-famous in 2019 when the Mukawaryu, a near-complete Hadrosaurid dinosaur skeleton larger than any Tyrannosaurus rex, was excavated from its shores. The Jukai sea-of-trees onsen celebrates this prehistoric legacy, and the fossil exhibits in Mukawa town are a genuinely extraordinary natural history encounter.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 42 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features sodium chloride water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.