Nino Daira Onsen; Kame no Yu
Hakone, Kanagawa, Japan
- Location
- Hakone, Kanagawa, 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
Nino Daira Onsen; Kame no Yu is located in Hakone, Kanagawa Prefecture, a renowned volcanic hot-spring region. Its sulfurous water reaches 44°C, with a pH of 6.5. The bathhouse includes an indoor bath, an outdoor rotenburo bath and a sauna.
Insider tip — Kame no Yu at Nino Daira Onsen serves the Hakone caldera plateau where the sulfurous volcanic springs emerge from the ancient crater walls of one of Japan most geologically active resort districts. The Nino Daira plateau within the Hakone caldera offers panoramic views of the Owakudani volcanic vents where sulfur gas escapes continuously from the hillside — a reminder that the entire Hakone landscape sits inside an active volcanic caldera that last erupted in 1170 CE and continues to generate the geothermal energy heating these celebrated Kanagawa hot springs.
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.