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Furumachi Onsen

Numata, Gunma, Japan
Furumachi Onsen
Location
Numata, Gunma, 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

Furumachi Onsen is a hot spring in the Furumachi area of Tochigi Prefecture, in the Kanto region north of Tokyo, whose sulfurous mineral waters have been valued for their distinctive character in a prefecture that is home to the spectacular UNESCO World Heritage shrines and mausoleums of the Nikko National Park. Tochigi Prefecture preserves both the ornate Edo-period splendor of the Nikko Tosho-gu shrine complex, one of the most elaborate examples of Japanese shrine architecture in existence, and the quieter pleasures of its various hot spring resorts distributed across the volcanic mountain zone of the northern Kanto highlands. The sulfurous waters of Furumachi Onsen, characteristic of the volcanic geothermal systems of the Kanto Mountains, are associated within Japanese bathing tradition with the comfort of the skin and muscular relaxation, providing restful thermal bathing to visitors exploring the rich natural and cultural heritage of this well-endowed prefecture.

Insider tip — Furumachi Onsen occupies a quiet street in the hot-spring town district of Numata, fed by sulfurous waters that carry a gentle egg-white aroma characteristic of Gunma's volcanic geology. The high-temperature spring is prized for its skin-softening properties and its reputed benefits for respiratory ailments. Older wooden bathhouses here have been serving bathers for generations, preserving a shitamachi townscape feel rare even in Japan. The surrounding Tone River valley offers excellent autumn foliage just a short walk away.
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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).