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Tsurugashima Onsen

Tsurugashima, Saitama, Japan
Tsurugashima Onsen
Location
Tsurugashima, Saitama, 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

Tsurugashima Onsen serves a residential Saitama city on the Tobu Tojo Line whose comfortable suburban identity belies its proximity to some of Saitama's most interesting cultural landscapes, positioned between the historic Little Edo of Kawagoe to the north and the mountainous Chichibu region to the west. The city's position along one of the Tokyo commuter rail network's main corridors gives it a thoroughly contemporary character as a bedroom community for the capital, yet its surrounding farmland and river terraces preserve a more rural atmosphere than much of the Saitama interior. The onsen's warm mineral waters offer local residents a therapeutic retreat in the comfortable familiarity of their own community, a neighborhood spa experience increasingly valued in the dense suburban geography of the greater Tokyo region.

Insider tip — Tsurugashima sits in the flat Kanto plain west of Tokyo, where deep drilling has tapped dark, saline Kanto loam onsen water. The sodium-chloride springs here leave a faint briny warmth on the skin and are prized as karada ga pokapoka — body-warming baths ideal for the cold winter months. Local sento facilities draw a steady neighborhood crowd and rarely see foreign visitors, making this an authentically local experience just 45 minutes by Tobu Tojo line from Ikebukuro.
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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).