Maenohara Onsen Sayanoyudokoro
Maenohara, Itabashi, Tokyo, Japan
- Location
- Maenohara, Itabashi, Tokyo, Japan
- Water type
- sodium chloride, thermal
- 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
Maenohara Onsen Sayanoyudokoro, in the Maenohara area of Itabashi Ward, Tokyo, offers sodium-chloride thermal water at 41°C. It has an indoor bath, an outdoor bath (rotenburo) and a sauna.
Insider tip — Maenohara Onsen Sayanoyudokoro is one of Tokyo's most architecturally celebrated public baths — designed with traditional Japanese timber construction, exposed wood beams, and natural light filtering through shoji screens into the bathing areas. The dark black kuro-yu water from Itabashi's deep artesian aquifer fills its baths. The facility also includes a garden, restaurant, and relaxation lounges — representing the pinnacle of the Tokyo 'cultural sento' movement that has revived public bath culture for a new generation.
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 & thermal water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.