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Uchiko Onsen

Uchiko, Ehime, Shikoku, Japan
Uchiko Onsen
Location
Uchiko, Ehime, Shikoku, Japan
Water type
sodium chloride
Temperature
41 °C
pH
7.3

Water profile

Thermicity
Sedative
41 °C
LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation
Restorative
LowHigh

Loaded with major ions — the essential minerals (Ca, Mg).

Buoyancy
Effortless float
LowHigh

Dense, salty water — you float without effort.

SodiumChloruresBrome

Uchiko Onsen is found in Uchiko, a beautifully preserved merchant town in the Oda River valley of Ehime Prefecture whose immaculate historic townscape of whitewashed merchant residences, sake breweries, and traditional wax workshops has made it one of Shikoku's most beloved heritage destinations — a town where the prosperity generated by the Japanese wax (mokuro) trade in the late Edo and Meiji periods is preserved in the architecture of the Yōkaichi Old Town district, where walls of traditional plaster and dark-timbered facades have been maintained in near-pristine condition as a living example of the prosperous merchant culture that once made Uchiko the commercial center of central Ehime. The Uchikoza kabuki theater, an original wooden playhouse dating to 1916 and still in regular use, stages performances of traditional drama and puppet theater that connect contemporary audiences with the theatrical traditions of this once-prosperous merchant town. The onsen here provide silica-rich mineral bathing in a town where historical architecture, artisanal craft heritage, and living theater tradition make every visit an encounter with Shikoku's preserved merchant past.

Insider tip — Uchiko Onsen sits near the historic merchant town of Uchiko, famed for its immaculate Yokaichi Old Town district and traditional wax production heritage. Bathing in the mildly saline thermal waters after exploring the preserved Taisho-era townscape completes a deeply textured cultural day. The bathhouse facilities tend to be understated and community-oriented, reflecting the quiet pride Uchiko residents take in their town's understated elegance.
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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 sodium chloride water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).