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Mutsu Shimokita Onsen

Mutsu, Aomori Prefecture, Japan
Mutsu Shimokita Onsen
Location
Mutsu, Aomori Prefecture, Japan
Water type
sulfurous
Temperature
44 °C
pH
6.5

Water profile

Thermicity
Sedative
44 °C
LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation
Bio-active
LowHigh

Rich in active gases or metals — a strong mineral character.

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

SoufreSulfuresSulfates

Mutsu Shimokita Onsen is located in Mutsu City on the Shimokita Peninsula, the axe-shaped promontory at the northern tip of Aomori Prefecture that is dominated by Osorezan, Mount Fear, the most uncanny and otherworldly religious site in Japan, where a volcanic crater lake of deep teal-blue water surrounded by sulfurous vents, barren gravel fields, and grotesque geological formations serves as a portal to the Buddhist underworld in a setting of visceral geological drama unmatched anywhere else in the archipelago. The mountain is the home of the famous itako, blind female mediums who summon the spirits of the deceased to deliver messages to bereaved family members in a practice that draws thousands of mourners and curiosity-seekers to the annual summer Osorezan Taisai festival. The thermal spring waters here, close to the volcanic energies of one of Japan's most spiritually charged and geologically spectacular sacred mountains, offer a bathing experience that carries the weight of the uncanny and the resonance of Japan's deepest traditions of contact with the realm of the dead.

Insider tip — Mutsu Shimokita Onsen lies at the tip of the Shimokita Peninsula, a remote volcanic finger of land jutting into the Tsugaru Strait between Honshu and Hokkaido. Sulfurous springs here surface near the caldera remnants of Osore-zan, one of Japan's three holy mountains associated with the underworld. The pungent, high-temperature water at 44°C has been used for centuries by pilgrims seeking physical and spiritual purification. The isolation of Shimokita means fewer crowds and a deeply wild, atmospheric bathing experience.
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Frequently asked questions

How hot is the water?
The water runs quite hot here, around 44 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features sulfurous water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).