Mizuho Onsen Sennen no Yu
Unzen, Nagasaki, Japan
- Location
- Unzen, Nagasaki, Japan
- Water type
- sulfurous
- Temperature
- 44 °C
- pH
- 6.5
Water profile
Thermicity
Sedative
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
Mizuho Onsen Sennen no Yu is located in Unzen, Nagasaki, a volcanic area known for its fumaroles. The sulfurous water heats to 44°C, in an indoor bath, an outdoor rotenburo bath and a sauna.
Insider tip — Sennen no Yu, the thousand-year hot spring, serves Unzen City on the Shimabara Peninsula where Japan first national park was established in 1934 around the famous Unzen Jigoku volcanic hell pools. The boiling sulfurous craters of Unzen were used as torture sites for Japanese Christian martyrs during the 1620s Shimabara persecution, creating landscapes where the history of spiritual violence and the beauty of volcanic nature are inseparably entangled.
Nearby
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.