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Unzen Onsen

Unzen, Nagasaki Prefecture, Japan
Unzen Onsen
Location
Unzen, Nagasaki Prefecture, Japan
Water type
sulfurous, acidic
Temperature
95 °C
pH
2.5

Water profile

Thermicity
Sedative
95 °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.

Acide sulfaté chloruré

Unzen Onsen is a geothermally heated volcanic hot spring field in the Unzen Mountains in Nagasaki prefecture in Japan. It was known of for many years, and in the 1910s was developed into a hot spring community because of its many springs. In 1934 the area was designated as the first national park in Japan.

Insider tip — The hike up to Mount Fugen, with views of the sulfur clouds and the Ariake Sea, is exceptional.
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Nearby

Frequently asked questions

How hot is the water?
The water runs quite hot here, around 95 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features sulfurous & acidic water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.