Nishi no Yu Onsen
Mimasaka, Okayama, Japan
- Location
- Mimasaka, Okayama, Japan
- Water type
- sodium chloride
- Temperature
- 41 °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
Nishi no Yu Onsen is located in Mimasaka, Okayama Prefecture. The sodium-chloride water surfaces at 41°C. The site offers an indoor bath, an outdoor rotenburo bath and a sauna.
Insider tip — Nishi no Yu, the western spring, serves Mimasaka City in the northern Okayama highlands of the former Tsuyama domain — an Edo-period castle territory whose samurai culture produced Miyamoto Musashi (1584-1645), the greatest swordsman in Japanese history. The Miyamoto Musashi birthplace is commemorated in the nearby museum, and the Mimasaka highlands preserve the atmospheric mountain villages that formed the rugged landscape of his boyhood training where the young Musashi first developed the two-sword Nito-ryu style that defined his legendary dueling career.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 41 °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.