Ouchi Onsen
Kobe, Hyogo, Japan
Illustration photo — not a verified picture of this exact spot.
- Location
- Kobe, Hyogo, Japan
- Water type
- iron-rich
- Temperature
- 41 °C
- pH
- 6.3
Water profile
Thermicity
Sedative
LowHigh
Relaxing — deep, immediate muscle release.
Mineralisation
Bio-active
LowHigh
Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
FerBicarbonatesManganèse
Ouchi Onsen is set in Kobe, Hyogo Prefecture, a port city in the Kansai region. Iron-rich water, with a slightly acidic pH of 6.3, emerges at 41°C, filling an indoor bath, an outdoor rotenburo, and a sauna.
Insider tip — Ouchi Onsen draws a natural iron-rich spring from the Rokko mountain range that forms the backdrop to Kobe, channeling mineral water down to a bathhouse nestled between mountain forest and the urban fringe. The iron content gives the water a distinctive amber hue and an earthy aroma that contrasts with the more sulfurous springs of Arima Onsen nearby. Bathing here is associated with easing chronic fatigue and improving skin condition. The mountain setting makes early-morning visits particularly rewarding as mist rolls down the Rokko slopes.
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 iron-rich water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).