Yamabushi Onsen; Yupoka
Yuza, Yamagata, Japan
Illustration photo — not a verified picture of this exact spot.
- Location
- Yuza, Yamagata, 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
Yamabushi Onsen, also known as Yupoka, is located in Yuza, Yamagata prefecture. The sodium-chloride water emerges at 41°C. The site combines an indoor bath, an outdoor rotenburo bath and a sauna, at the foot of the hills overlooking the region.
Insider tip — Yamabushi Onsen Yupoka sits near the Yamagata coast of the Sea of Japan in Yuza town, drawing sodium-chloride water from coastal thermal strata associated with the region's sedimentary geology. The yamabushi mountain ascetic tradition of the Dewa Sanzan pilgrimage routes runs through this area, and the bath carries a quietly spiritual atmosphere appropriate to the landscape. Saline water retains warmth with particular effectiveness in the cool sea air off the Japan Sea coast, making winter visits especially restorative. The facility serves the local community and provides a welcoming stop for pilgrims completing the sacred mountain trails.
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 (idéal automne-hiver).