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Nishitokyo Onsen Tokyo

Nishitokyo, Tokyo (Kanto), Japan
Nishitokyo Onsen Tokyo
Location
Nishitokyo, Tokyo (Kanto), 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

Nishitokyo, in the central western part of Tokyo Metropolis on the Seibu and Chuo Lines, is a densely residential community incorporating the former cities of Tanashi and Hoya, known for the Dendoubashi historic bridge site and the Shakujii Park — one of the greenest parks in the Nerima area — whose forested pond landscape creates a significant natural refuge in the densely suburban northwestern Tokyo belt. Nishitokyo Onsen Tokyo draws on chloride-rich thermal waters from the geological resources of the central western Tokyo upland, offering warm restorative baths in a residential community whose green park corridors, traditional suburban character, and easy access to both Shinjuku and the Musashino cultural zone create a conveniently located and pleasant spa setting. The Shakujii Park forested pond landscape and birdwatching opportunities, the traditional Tanashi market townscape remnants of the former city centre, and the Hoya Nishi-Tokyo traditional farmhouse museum create a pleasantly green and historically connected thermal destination in northwestern Tokyo Metropolis.

Insider tip — Nishitokyo is a dense residential district in the northern Tama zone, and its sodium-chloride spring is a classic urban sento tapping deep alluvial aquifers beneath the Musashino Plateau. The saline water promotes circulation and body warmth, making it popular year-round with neighbourhood regulars. Neighbourhood sento culture here is well-preserved and prices remain low by Tokyo standards.
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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).