Awato Onsen
Choshi, Chiba, Japan
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- Location
- Choshi, Chiba, 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.
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Located in Choshi, Chiba, Japan, Awato Onsen offers a soak in iron-rich water at 41°C, with an indoor bath, open-air outdoor bath and sauna for a relaxing break.
Insider tip — Awato Onsen occupies the far eastern tip of Chiba Prefecture near Choshi, where iron-bearing brines rise through deep Kazusa Group sediments beneath the Boso Peninsula. The dark, sodium-iron spring water is a hallmark of the Chiba coastal lowland thermal belt and is excellent for warming and circulatory health during the cold winter months when Pacific winds sweep inland. The facility is modest in scale but beloved by local fishing communities for its restorative properties after long offshore voyages. Sunsets over the Pacific seen from the outdoor bath area are a genuine highlight.
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).