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Kanegasaki Onsen

Kanegasaki, Iwate, Japan
Kanegasaki Onsen
Location
Kanegasaki, Iwate, 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

Kanegasaki Onsen is found in Kanegasaki, a small town in the Isawa district of Iwate Prefecture set in the broad fertile plain of the Kitakami River basin, where rice cultivation, vegetable farming, and fruit orchards take advantage of the valley's relatively mild microclimate to produce agricultural products of quality notable for their Tohoku provenance. The town's peaceful rural character contrasts with the historical drama associated with the name Kanegasaki elsewhere in Japan — the Kanegasaki Castle in Fukui Prefecture was the site of the famous 1570 Battle of Kanegasaki where Oda Nobunaga famously retreated, though this Iwate town shares only the name and none of the military drama. The onsen here draw on silica-rich thermal waters emerging from the Kitakami Highlands' geothermal activity, providing smooth mineral bathing in an agricultural community whose quiet rhythms of rice cultivation, orchard management, and riverside community life represent the unhurried heart of rural Iwate's agricultural countryside.

Insider tip — Kanegasaki lies along the Kitakami River plain in western Iwate, surrounded by rice paddies and gentle hills. Its bicarbonate springs at 40°C are renowned locally for their mild, smooth texture ideal for sensitive skin. The town hosts one of Japan's largest tulip parks, making spring visits especially scenic. A relaxed community onsen offering genuine Tohoku hospitality away from tourist crowds.
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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).