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Zama Onsen

Zama, Kanagawa, Japan
Zama Onsen
Location
Zama, Kanagawa, 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

Zama Onsen offers siliceous mineral bathing in the compact city of Zama in the Sagami plain of Kanagawa Prefecture, a city whose contemporary identity is defined by its long-standing role as host to the United States Army Garrison Japan headquarters—Camp Zama, a major US military base established in 1945 that has shaped Zama's bicultural character for over seven decades of US-Japan alliance. The thermal mineral waters provide warm, accessible relaxation for the bilingual community of Japanese residents and American military personnel who share this small Kanagawa city, where the cultural exchange between Japanese and American traditions has created a uniquely bicultural urban environment of English-language shopping districts, American-style diners, and Japanese onsen culture coexisting in surprising harmony. The nearby Tanzawa-Oyama mountains, the Sagami River's floodplain parks, and the Zama Chrysanthemum Festival give this bicultural onsen city a seasonal natural beauty that transcends its geopolitical significance.

Insider tip — Zama Onsen is a compact urban sento town facility in central Kanagawa, drawing the classic dark mineral water common to the deep Kanto sedimentary basin. The sodium-chloride water promotes circulation and is locally valued for relieving muscle fatigue, fitting for a community bath serving the dense residential areas of northern Kanagawa. Zama is located between Sagamihara and the Odakyu railway corridor. The unpretentious neighborhood sento atmosphere here offers an authentic contrast to larger resort facilities.
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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).