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Kotohira Onsen

Kotohira, Kagawa (Shikoku), Japan
Kotohira Onsen
Location
Kotohira, Kagawa (Shikoku), Japan
Water type
bicarbonate
Temperature
40 °C
pH
8

Water profile

Thermicity
Sedative
40 °C
LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation
Restorative
LowHigh

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

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

BicarbonatesSodiumCalcium

Kotohira Onsen is a thermal facility in Kotohira town in Kagawa Prefecture on Shikoku Island, located in the same small town as the celebrated Kompirasan shrine complex — one of Japan's most beloved Shinto shrines dedicated to sea voyagers and fishermen, approached via a famous staircase of 785 stone steps ascending through the forested hillside. The siliceous thermal waters of Kotohira provide a soothing counterpoint to the physical exertion of the Kompirasan pilgrimage steps, with many of the town's ryokan offering onsen baths to visiting pilgrims in a tradition of combining spiritual devotion and bodily renewal that is fundamental to Japanese religious culture. The combination of the sacred atmosphere of Kompirasan, the elegant temple gate approach streets of Kotohira, and the skin-conditioning siliceous onsen makes this compact Shikoku town one of the most authentically Japanese thermal pilgrim destinations in the country.

Insider tip — Kotohira Onsen lies at the base of the famous Konpira-san shrine steps in Kagawa Prefecture, offering a natural rest after climbing the 785 stone stairs to the mountaintop shrine. Bicarbonate waters emerge from the Sanuki plain's underlying aquifer. The combination of sacred pilgrimage and thermal bathing is a centuries-old Shikoku custom.
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Frequently asked questions

How hot is the water?
The water runs quite hot here, around 40 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features bicarbonate water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).