Niijima Onsen
Niijima, Tokyo, Japan
- Location
- Niijima, Tokyo, 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
Niijima Onsen is located on Niijima island, in Tokyo prefecture, Japan, fed by sulfurous water at 44°C (pH 6.5). The bathhouse offers an indoor bath, an outdoor bath (rotenburo) and a sauna.
Insider tip — Niijima island in the Izu Islands chain south of Tokyo is a volcanic island famous for surfing, snorkeling, and hot springs that emerge directly onto the beach — one of Japan's most unusual seaside thermal experiences. The springs on Niijima are fed by the same volcanic chain that runs through the Izu Islands, producing sulfurous water where Pacific Ocean surf meets volcanic shore in a remote island accessible only by overnight ferry or small plane from Tokyo.
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.