Kasukabe Yumoto Onsen
Kasukabe, Saitama, Japan
- Location
- Kasukabe, Saitama, Japan
- Water type
- sodium chloride
- Temperature
- 41 °C
- pH
- 7.3
Water profile
Thermicity
Sedative
LowHigh
Relaxing — deep, immediate muscle release.
Mineralisation
Restorative
LowHigh
Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Also in Kasukabe, Saitama Prefecture, Yumoto Onsen taps a sodium-chloride spring at 41°C. The bathhouse has an indoor bath, an outdoor rotenburo and a sauna for visitors to enjoy.
Insider tip — Kasukabe Yumoto Onsen is another natural hot spring in Kasukabe, offering clear saline water from the deep Kanto plain aquifer as a complement to the darker mineral baths elsewhere in the city. The name 'Yumoto' classically designates a spring at the source, emphasizing the natural origin of its geothermal water. Located in greater Tokyo's northeastern suburbs, it provides a convenient neighborhood retreat for residents seeking traditional onsen culture without long travel. The sodium-rich water leaves skin supple and deeply warmed after each session.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 41 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features sodium chloride water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).