Osone Onsen Yu no Shiro
Nagoya, Aichi, Japan
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- Location
- Nagoya, Aichi, Japan
- Water type
- thermal, sodium chloride
- Temperature
- 38 °C
- pH
- 7.3
Water profile
Thermicity
Neutral
LowHigh
Soothing — neither hot nor cold, perfect balance.
Mineralisation
Restorative
LowHigh
Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Osone Onsen Yu no Shiro, in Nagoya, Aichi Prefecture, delivers sodium-chloride thermal water at around 38°C (100°F), across an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — 'Yu no Shiro' (castle of waters) is a large spa facility in the Ōsone district of Nagoya. Nagoya's urban hot spring culture is less famous than Osaka's, but deep artesian wells beneath the Nobi Plain yield warm sodium-rich waters. A practical and comfortable city soak.
Nearby
Frequently asked questions
How hot is the water?
The water is neutral here, around 38 °C — a perfect balance, neither too hot nor too cold.
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.