ThermaeExplore the map →

Yunotaira Onsen Minakami

Yunotaira, Minakami, Gunma Prefecture, Japan
Yunotaira Onsen Minakami
Location
Yunotaira, Minakami, Gunma Prefecture, Japan
Water type
sulfurous, bicarbonate
Temperature
38 °C
pH
6.5

Water profile

Thermicity
Neutral
38 °C
LowHigh

Soothing — neither hot nor cold, perfect balance.

Mineralisation
Bio-active
LowHigh

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

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

SoufreSulfuresSulfates

Minakami Onsen is a celebrated hot spring resort area in northern Gunma Prefecture, Japan, set among the mountains and river gorges that form the headwaters of the Tone River, Japan's second longest. The bicarbonate thermal waters of Minakami's numerous springs are valued for their skin-warming and relaxing properties, and the area's ryokan inns offer a wide range of bathing styles from rotemburo (outdoor baths) with mountain views to private in-room bath facilities. Minakami is a remarkably versatile destination in all seasons: world-class rafting, canyoning, and bungee jumping in summer, exceptional powder snow skiing in winter, and the brilliant autumn foliage of the beech and maple forests creating a spectacular backdrop in October. The combination of adventure activities, pristine mountain nature, and the refined pleasures of traditional onsen bathing makes Minakami one of Gunma's most dynamic and rewarding resort destinations.

Insider tip — Yunotaira Onsen sits in a narrow gorge carved by the upper Tone River near Minakami, where sulfurous water at a gentle 38°C emerges from volcanic rock beneath the Tanigawa massif. The lower temperature makes for extended soaking sessions, and the milky blue tinge of the water indicates high dissolved sulfur content that locals attribute to skin-clearing properties. The adjacent Bungee Jump Bridge over the gorge draws thrill-seekers, making Yunotaira a spot that satisfies both adrenaline and relaxation.
Find hotels nearby →Tickets & activities →See the map & practical info →

Nearby

Frequently asked questions

How hot is the water?
The water is neutral here, around 38 °C — a perfect balance, neither too hot nor too cold.
What type of water is found here?
This spot features sulfurous & bicarbonate water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).