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Thermes de Lons-le-Saunier

Lons-le-Saunier, Jura Department, Bourgogne-Franche-Comte, France
Thermes de Lons-le-Saunier
Location
Lons-le-Saunier, Jura Department, Bourgogne-Franche-Comte, France
Water type
bicarbonate
Temperature
38 °C
pH
8

Water profile

Thermicity
Neutral
38 °C
LowHigh

Soothing — neither hot nor cold, perfect balance.

Mineralisation
Restorative
LowHigh

Loaded with major ions — the essential minerals (Ca, Mg).

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

BicarbonatesSodiumCalcium

Thermes de Lons-le-Saunier draws chlorurated and sulfated mineral springs in the capital of the Jura department of eastern France, a city of arcaded market streets and distinctive yellow-stone architecture set in the limestone plateau country that produces Comte cheese, Vin Jaune, and one of France's most complex regional cuisines from an agricultural landscape shaped by the unique microclimate of the Jura massif. The spring waters of Lons have been used for rheumatic and gynaecological conditions since the eighteenth century and the thermal complex maintains both a medical prescription programme and a leisure spa in the heart of a city whose central arcades and clock tower make it one of the most handsome departmental capitals in France. Baume-les-Messieurs, fifteen kilometres to the north, is one of France's designated Most Beautiful Villages, its magnificent geological cirque of three-hundred-metre vertical limestone walls enclosing a medieval abbey, a village of old stone houses, and a cave system that makes it one of the most complete natural and cultural spectacles in the Jura.

Insider tip — Lons-le-Saunier is the birthplace of Rouget de Lisle, composer of La Marseillaise, and its thermal establishment has welcomed bathers since the 18th century. The spa draws bicarbonate-chloride water from the Jura karst at a steady 38 degrees. The town's elegant arcaded main street and proximity to the Bresse and Jura wine regions make extended stays particularly enjoyable. The thermal park and its century-old plane trees provide a classic French thermal resort atmosphere.
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Frequently asked questions

How hot is the water?
The water is neutral here, around 38 °C — a perfect balance, neither too hot nor too cold.
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.