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Matsugamine Onsen

Uonuma, Niigata, Japan
Matsugamine Onsen
Location
Uonuma, Niigata, 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

Matsugamine Onsen—the Pine Peak Spring—takes its name from the pine-covered ridge that frames its setting, the pine tree being one of Japan's most symbolically significant trees—associated with longevity, resilience, and the enduring beauty of mountainous landscapes across centuries of Japanese painting, poetry, and garden design. The sulfurous waters carry the volcanic character of Niigata's active geological systems, providing the hydrogen sulfide mineral signature prized in Japanese thermal tradition for its distinctive aroma and atmosphere within a setting of pine-crowned highland beauty. The combination of the pine's symbolic longevity and the sulfurous spring's mineral intensity creates a bathing experience that connects relaxation to the most enduring natural symbols of the Japanese aesthetic and spiritual tradition.

Insider tip — Matsugamine Onsen sits in the mountainous Uonuma region of Niigata Prefecture, where snowmelt and volcanic geology produce richly sulfurous waters. The area is renowned for its heavy winter snowfall, making a soak here especially restorative after skiing or hiking. The milky, mineral-laden water has a distinctive egg-like aroma characteristic of deep-source Japanese volcanic springs.
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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).