Hamanoyu Onsen
Izumiōtsu, Osaka, Japan
Illustration photo — not a verified picture of this exact spot.
- Location
- Izumiōtsu, Osaka, Japan
- Water type
- sodium chloride, thermal
- 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
In Izumiōtsu, Osaka, Hamanoyu Onsen offers a bath with sodium-chloride water, in the tradition of local onsen. The water emerges at around 38°C. Visitors can enjoy an indoor bath, an open-air bath (rotenburo) and a sauna. A relaxing stop for travellers in the region.
Insider tip — 'Hamanoyu' (shore waters) is a coastal hot spring in Izumiōtsu on Osaka Bay. The name evokes the sea breeze and sandy shore. Sodium-rich artesian waters from deep beneath the coastal plain. A neighbourhood sento for the fishing and working communities of this Osaka Bay port town.
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 sodium chloride & thermal water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.