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Sugito Onsen Saitama

Sugito, Saitama (Kanto), Japan
Sugito Onsen Saitama
Location
Sugito, Saitama (Kanto), Japan
Water type
bicarbonate
Temperature
40 °C
pH
8

Water profile

Thermicity
Sedative
40 °C
LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation
Restorative
LowHigh

Loaded with major ions — the essential minerals (Ca, Mg).

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

BicarbonatesSodiumCalcium

Sugito, in the eastern Saitama Prefecture along the Naka River near the Chiba border, is a small agricultural community in the flat southeastern Saitama lowlands whose traditional spring onion and asparagus cultivation has supplied the Tokyo metropolitan vegetable markets for generations, the fertile alluvial soils of the Naka River plain supporting year-round production. Sugito Onsen Saitama draws on sodium and bicarbonate thermal waters from the geological resources of the eastern Saitama lowlands, offering restorative baths in an agricultural community whose vegetable cultivation heritage, flat river plain landscape, and access to the Tobu Noda Line corridor create a quietly rural and unpretentious spa setting in the eastern Saitama countryside. The Naka River nature trail and cycling paths through the flat lowland agricultural landscape, the traditional Saitama vegetable market culture of the Sugito area, and the proximity to the Kasukabe Fujinuma Iris Garden — one of the most celebrated iris displays in the greater Tokyo region — create a pleasantly agricultural and seasonal spa destination in eastern Saitama Prefecture.

Insider tip — Sugito lies within the Minami Saitama district along the Edogawa River corridor, an area historically famous for its shallow-draft cargo boats that once linked the Kanto hinterland with Edo. Bicarbonate spring water here is drawn from deep Kanto alluvial layers and its soft, slightly alkaline character is gentle enough for sensitive skin. The riverside landscape remains pleasant for cycling before settling in for an evening soak.
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Frequently asked questions

How hot is the water?
The water runs quite hot here, around 40 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features bicarbonate water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).