Kunitachi Onsen Yuraku no Sato
Kunitachi, Tokyo Prefecture, Japan
- Location
- Kunitachi, Tokyo Prefecture, 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
Kunitachi Onsen Yuraku no Sato, in Kunitachi, Tokyo Prefecture, offers sodium-chloride water at 41°C, with an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — Kunitachi Onsen Yuraku no Sato draws dark, tannin-rich sodium-chloride waters from deep Pleistocene marine deposits beneath the Musashino Plateau — characteristic of Tokyo's suburban deep-source onsen boom. The dark amber water is notable for its heat-retaining properties, warming bathers thoroughly even in the cool outdoor baths. The facility is a large super-sento format, popular with families from the surrounding residential university town. Arrive after 21:00 for the quietest experience in the outdoor rotenburo.
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).