Tennen Toda Onsen; Saika no Yu
Toda, Saitama, Japan
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- Location
- Toda, 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
Saika no Yu, in Toda (Saitama prefecture), draws natural sodium-chloride water at 41°C, offering a relaxing stop on the outskirts of Tokyo. An indoor bath, an outdoor rotenburo bath, and a sauna are available.
Insider tip — Saika no Yu serves Toda City on the Arakawa River in Saitama Prefecture, home of Japan premier Olympic rowing facility — the Toda Olympic Rowing Course built for the 1964 Tokyo Olympics and used again for the 2020 Games, establishing Toda as Japan center of competitive rowing culture where the national team trains year-round on the artificial 2,000-metre regatta course. The Arakawa River floodplain surrounding the course preserves a remarkable corridor of river ecology within the metropolitan area where migratory waterfowl, kingfishers, and great egrets inhabit the reed beds beside the Olympic venue.
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.