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Takasakionsen Gunma

Takasaki, Gunma, Japan
Takasakionsen Gunma
Location
Takasaki, Gunma, Japan
Water type
bicarbonate
Temperature
41 °C
pH
8

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
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

BicarbonatesSodiumCalcium

Takasaki, the commercial capital of Gunma Prefecture and a major Shinkansen hub connecting to Tokyo in under an hour, is the gateway to the Gunma hot spring resorts of Kusatsu, Shima, and Minakami while serving as an important centre for the Daruma doll craft tradition, the performing arts scene centred on the Gunma Music Centre, and the traditional sake and miso production of the Agatsuma River valley. Takasakionsen Gunma draws on sodium and bicarbonate thermal waters from the geothermal resources of the Takasaki basin, offering accessible urban spa relaxation in a city whose outstanding transport connections and cultural vibrancy make it a natural base for exploring the thermal riches of the greater Gunma region. The exceptional Gunma Museum of Art, the traditional Daruma market culture, and the convenient Shinkansen connections to Tokyo and the Joetsu Shinkansen network linking to Niigata and the Sea of Japan coast create a well-connected urban spa destination that anchors the western Kanto thermal corridor in Gunma Prefecture.

Insider tip — Takasaki is Gunma's commercial hub, and its urban onsen taps a warm bicarbonate spring from the Kanto sedimentary basin. Bathers enjoy the silky, slightly alkaline water that softens skin noticeably. The surrounding Joshinetsu highlands give Gunma some of Japan's richest thermal geology, making even a city-center bath feel connected to ancient volcanic forces.
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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 bicarbonate water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).