Sennari Onsen
Osaka, Osaka, Japan
Illustration photo — not a verified picture of this exact spot.
- Location
- Osaka, Osaka, 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
Sennari Onsen, in Osaka, Osaka, is a Japanese thermal bathhouse with sodium-chloride water. The water emerges at around 38°C. The bathhouse offers an indoor bath, an open-air bath (rotenburo) and a sauna.
Insider tip — 'Sennari' (bountiful harvest) is a classic urban sento in Osaka. Deep artesian hot spring water — often dark amber in Osaka — distinguishes these neighbourhood baths from simple heated-water public bathhouses. A genuine cultural institution of Osaka's working-class neighbourhood life.
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.