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Miharu Onsen Akita

Miharu, Akita, Japan
Miharu Onsen Akita
Location
Miharu, Akita, 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

Miharu, located in the upper reaches of the Yoneshiro River valley in southern Akita Prefecture bordering Iwate, is a small agricultural community in the deep interior Akita highlands where traditional rice cultivation and mountain forestry have shaped the landscape for generations in a region known for its heavy Akita snowfall and the profound winter quiet of the interior Tohoku mountains. Miharu Onsen Akita draws on sodium and bicarbonate thermal waters from the geothermal resources of the inland Akita mountain zone, offering restorative baths in a mountain agricultural community where the Akita cedar forests, traditional snow country architecture, and the cultural depth of the Tohoku interior create a reflective and unhurried spa atmosphere. The Miharu River valley mountain scenery, the traditional Akita cedar (Akita sugi) forest management culture that has produced Japan's finest timber for centuries, and the winter snow landscapes of the interior Tohoku highlands make this an authentic and deeply Japanese spa destination in the mountains of southern Akita Prefecture.

Insider tip — Miharu, located in central Akita, draws bicarbonate spring water from the volcanic foothills of the Ou Range that bisects the Tohoku region. The alkaline water has a slick, silky feel on the skin and is classified locally as a bijin-no-yu, or beauty bath. The surrounding countryside is characteristically Akitan: cedar plantations, paddy fields, and snow-laden rooftops for half the year. The onsen here provide a warm community anchor for an area facing rural depopulation, and visitors are warmly welcomed.
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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).