Nihonkai Onsen Kashima no Yu
Abu, Yamaguchi, Japan
- Location
- Abu, Yamaguchi, Japan
- Water type
- sodium chloride, thermal
- 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
Facing the Sea of Japan in Abu, Yamaguchi Prefecture, Nihonkai Onsen Kashima no Yu offers sodium-chloride thermal water at 40°C (104°F). The facility includes an indoor bath, an outdoor rotenburo bath and a sauna.
Insider tip — 'Nihonkai' (日本海 — Sea of Japan) Onsen 'Kashima no Yu' celebrates its prime coastal location on the San'in coast — one of Japan's most dramatic unspoiled shorelines, where basalt sea cliffs, natural sea arches, and legendary crab grounds define the landscape. Abu Town in Yamaguchi Prefecture is in the heart of the San'in Kinki Geopark; the Sea of Japan's cold Tsushima Current yields extraordinary winter seafood including snow crab (matsuba-gani) that rivals Hokkaido's offerings.
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 sodium chloride & thermal water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.