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Mimata Onsen

Nita, Shimane, Japan
Mimata Onsen
Location
Nita, Shimane, Japan
Water type
thermal
Temperature
40 °C
pH
7.3

Water profile

Thermicity
Sedative
40 °C
LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation
Balancing
LowHigh

Rich in trace elements — gentle on the skin.

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

BicarbonatesCalcium

Mimata Onsen in Shimane Prefecture flows with simple thermal waters in a prefectural landscape of profound historical and mythological significance, where the Izumo Grand Shrine, the Adachi Museum of Art, the ancient Oki Islands, and the dramatic Sanin coast combine to create one of western Japan's richest concentrations of cultural and natural heritage within easy reach of natural thermal bathing. The spring's simple mineral character provides gentle, universally accessible bathing in a prefecture whose quiet, undervisited character makes it one of Japan's best-kept secrets for travelers seeking authentic cultural immersion alongside the pleasures of naturally heated volcanic spring water. Mimata Onsen embodies the understated but genuine quality of Shimane's thermal heritage, offering visitors the simple pleasures of natural hot spring bathing in a prefectural landscape where ancient mythology, traditional crafts, and the austere beauty of the Japan Sea coast create a depth of cultural experience that the simplicity of the spring's mineral water mirrors perfectly.

Insider tip — Mimata Onsen occupies a quiet valley in Shimane near the Nita Highlands, where clear mild thermal waters have served the Izumo region's farming and forestry communities for generations without attracting mass tourism. The bathhouse is refreshingly unfussy, a deep wooden tub, a cold plunge, and a changing room with a view of persimmon orchards. The Nita area is historically linked to iron-sand smelting, and the landscape still bears the sculpted contours of ancient tanuki iron workings. Autumn evenings here, with woodsmoke from nearby farmhouses drifting through the steam, achieve a particular meditative stillness.
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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 thermal water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).