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Yunotani Onsen Niigata

Yunotani, Niigata Prefecture, Japan
Yunotani Onsen Niigata
Location
Yunotani, Niigata Prefecture, Japan
Water type
sulfurous
Temperature
40 °C
pH
6.5

Water profile

Thermicity
Sedative
40 °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

Yunotani Onsen Niigata is a mountain hot spring in the Yunotani area of Uonuma City in Niigata Prefecture, Japan, a deep-valley region of the Echigo Mountains known for producing Japan's most acclaimed Koshihikari rice and for receiving some of Japan's heaviest snowfall, with depths regularly reaching 3–4 meters — the 'snow country' immortalized by Kawabata Yasunari's Nobel Prize-winning novel. The naturally sulfurous spring waters here carry the distinctive mineral character of volcanic sulfur springs and, within a long thermal tradition, are associated with well-being and a deeply warming soak that is doubly welcomed in the extreme winter cold of Niigata's snow-buried mountain valleys. Soaking in Yunotani's sulfurous hot spring waters surrounded by the dramatic snow-season landscape of Kawabata's 'Snow Country' — where rice fields lie buried under meters of white — provides one of Japan's most seasonally extreme and literarily evocative onsen experiences.

Insider tip — Yunotani Onsen lies in the mountainous interior of Niigata Prefecture, where sulfurous springs emerge at 40°C amid dense beech forest and heavy winter snowfall. The milky, hydrogen-sulfide-scented water is prized for skin conditions and respiratory relief. Visit in late autumn when the surrounding maple trees turn crimson and the contrast with the white steam is dramatic.
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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 sulfurous water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).