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Fuchu Onsen

Fuchu, Tokyo, Japan
Fuchu Onsen
Location
Fuchu, Tokyo, Japan
Water type
sodium chloride
Temperature
41 °C
pH
7.3

Water profile

Thermicity
Sedative
41 °C
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

Fuchu Onsen offers siliceous mineral bathing in the historic city of Fuchu in central western Tokyo Prefecture, home to the Tokyo Racecourse—Japan's most prestigious horse racing venue, host of the Japan Cup and a cultural institution of Japanese equestrian sport since 1933—and of the ancient Okunitama Shrine, whose 1,600-year-old zelkova tree forest in the heart of the city represents one of Tokyo Prefecture's most sacred Shinto precincts. The thermal mineral waters provide warm, restorative bathing for a city whose fusion of ancient religious heritage (Fuchu means 'provincial capital' in reference to its role as the ancient Musashi provincial government center), modern horse racing culture, and major JAXA aerospace research facility creates an unusual combination of historical depth and contemporary dynamism within the Tokyo metropolitan framework. The Okunitama's ancient zelkova grove, the thundering hooves of the Japan Cup, and the warm mineral waters of Fuchu's onsen embody the layered temporal complexity of a city where ancient and modern Japan continuously intersect.

Insider tip — Fuchu lies on the Musashino Plateau in western Tokyo, historically significant as the provincial capital of ancient Musashi Province and still home to the famous Fuchu Race Course. The local sento draws sodium-chloride thermal water that is distinctly dark — the black moor water of the Kanto basin — and the mineral content is known to ease tired muscles after long commutes. The zelkova-lined Keyaki Namiki boulevard nearby offers a cooling shaded walk before or after your soak.
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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).