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Ebina Onsen

Ebina, Kanagawa, Japan
Ebina Onsen
Location
Ebina, 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

Ebina Onsen is a community thermal facility in the city of Ebina in central Kanagawa Prefecture, a major logistics and manufacturing hub in the western suburbs of the greater Tokyo metropolitan area, positioned at the nexus of the Tomei Expressway, the Ken-O Expressway, and the Sagami Plain where Kanagawa's suburban development meets the northern foothills of the Tanzawa mountain range. The siliceous mineral waters provide warm, restorative bathing for a city whose identity is shaped by its role as a distribution center for the Tokyo and Yokohama economies, embodying the everyday wellness function of the neighborhood onsen for urban commuters seeking physical recovery from the demands of Japan's most densely interconnected metropolitan economy. The nearby Isehara City and the Oyama Shrine's autumn foliage on the Tanzawa range give Ebina's residential community an accessible natural backdrop that the onsen's warm waters connect to the broader thermal heritage of the Kanagawa highlands.

Insider tip — Ebina Onsen taps a sodium-chloride bearing aquifer drawn from deep beneath the Kanto Plain, typical of the region's geological profile of ancient marine sediments. The dark, mineral-rich kuronyu (black water) characteristic of many Kanto area baths is prized for its warming and skin-softening properties. Ebina sits at the convergence of several major rail lines, making it accessible from Yokohama, Shinjuku, and central Kanagawa. Arrive after 20:00 to enjoy the baths when post-work crowds have thinned.
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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).