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Imakane Onsen Hokkaido

Imakane, Hokkaido, Japan
Imakane Onsen Hokkaido
Location
Imakane, Hokkaido, Japan
Water type
sodium chloride, 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
Effortless float
LowHigh

Dense, salty water — you float without effort.

SodiumChloruresBrome

Imakane, on the Sea of Japan coast of southern Hokkaido in the Hiyama subprefecture, is a small fishing community in the coastal hills between the Esashi herring port and the Setana marine coast, whose traditional kombu kelp harvesting culture — Hokkaido produces the vast majority of Japan's kombu supply, the essential basis of Japanese dashi stock — creates a distinctive culinary maritime identity in this rural coastal community. Imakane Onsen Hokkaido draws on sodium and bicarbonate thermal waters from the geothermal resources of the Hiyama coastal zone, offering restorative baths in a small coastal community whose traditional kombu kelp harvesting heritage, the Sea of Japan coastal scenery, and the rural Hokkaido fishing village atmosphere create a genuinely unhurried and authentically maritime spa experience on the outer Hokkaido coast. The traditional Hokkaido kombu kelp harvesting and drying culture visible along the coastal road, the fresh Sea of Japan seafood of the Imakane fishing cooperative, and the coastal highland scenery of the Hiyama subprefecture's rugged Sea of Japan coastline create a pleasantly authentic and culinarily distinctive coastal spa destination in southern Hokkaido.

Insider tip — Imakane lies on the Sea of Japan coast of Hokkaido's Oshima Peninsula, where bicarbonate-sodium waters emerge at 40°C with a softening effect on the skin. The spring is prized by locals for its smoothing properties attributed to the bicarbonate content. Arrive at dusk to catch views of the Japan Sea from coastal bath facilities. The quiet town setting offers an unhurried contrast to busier resort onsens.
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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 sodium chloride & bicarbonate water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).