The Story of the Thermes de Saint-Gervais Mont Blanc – Two Centuries of Science and Healing
Saint-Gervais Mont Blanc Thermal Baths: A Legacy of Tradition and Renewal
For over two centuries, the Thermes de Saint-Gervais Mont Blanc have been an integral part of the Alpine thermal heritage. Born from the discovery of the thermal water that springs at the foot of Mont Blanc, they represent a unique place where history, nature, and innovation converge.
Even today, the story of this exceptional site continues, connecting the first spa guests of the 19th century with modern visitors who come to enjoy our thermal treatments, wellness massages, and the unparalleled experience of the Mont Blanc Baths.
Origins: The Discovery of the Springs (Early 19th Century)
At the beginning of the 19th century, Saint-Gervais was a quiet rural village. Tourists rarely ventured into the valley or up into the heights. Only shepherds came to graze their flocks, as the grass remained lush thanks to a hot, sulphur-scented spring.
In 1806, Master Gontard, a royal notary, discreetly had the water analysed and discovered its remarkable properties: a high mineral content capable of treating various ailments. The notary purchased the land and immediately had a gallery dug above the springs to install four wooden baths. The following year, he added an upper floor with two small turrets, and by 1807, a modest establishment was opened. Thus, the Saint-Gervais Baths were born.
1815: Dr Mattey Validates the Efficacy of the Waters in Dermatological Treatments
Over two centuries ago, the remarkable properties of the waters of Saint-Gervais were discovered.
Since then, successive owners and physicians have shaped the history of the Thermes, a story marked by discoveries, innovations, setbacks, and renaissances. The establishment created by Master Gontard was an immediate success, drawing visitors eager to benefit from its miraculous waters.
In 1815, Dr Mattey was appointed chief medical officer. He catalogued the diseases treated by the waters and codified their use—whether for drinking, baths, showers, and soon, steam baths. He was the first to scientifically prove their effectiveness on skin conditions. Bolstered by these discoveries, the Saint-Gervais Baths continued to flourish in the following decades. An affluent clientele flocked to the spa, accommodated in newly built hotels. By 1838, when Master Gontard sold the Thermes, the establishment was thriving.
1892: The Thermes Swept Away by a Mountain Mudslide
Since 1883, the Compagnie Générale des Eaux Minérales et des Bains de Mer had renovated the facilities. Specialised programmes were implemented, and the establishment had become a leading medical centre. Yet in 1892, a natural disaster shattered these successes.
On a sweltering summer evening, a torrent of mud, rocks, and ice thundered down the mountain, sweeping away everything in its path. Around one hundred people perished at the Thermes, and the building was almost entirely destroyed.
Several investigators explored the site and uncovered the cause of the catastrophe: over 200,000 cubic metres of water had accumulated over millions of years within the TĂŞte-Rousse glacier, before rupturing its front section and cascading down into the valley.
1914: The New Thermal Complex Thrives at Full Capacity
After the disaster, the glacier was placed under strict surveillance, extensive works were undertaken, and its waters were drained to prevent any further incidents. Less than two years later, a new state-of-the-art establishment was built, one kilometre from the original Thermes. The focus was on hydrotherapy, with the construction of steam bath cabins, spray and ascending showers.
Additional medical facilities were added, creating a comprehensive thermal complex. At the same time, Saint-Gervais transformed, welcoming a new population of holidaymakers. With the arrival of the railway, the construction of the Mont Blanc tramway, hotels, and villas, the town entered a golden age.
World War I, however, brought a halt to these developments.
2010: Launch of the Mont Blanc Thermal Baths
With society’s growing interest in wellness, the development of this new facility was inevitable. This space invites guests to discover an experience centred on the virtues of Mont Blanc thermal water for all.
A succession of indoor and outdoor relaxation areas allows visitors to enjoy the benefits of Mont Blanc thermal water through three main stages: preparation, regeneration, and revitalisation. Each year, tens of thousands of clients come to enjoy this exceptional space.
The Thermes, however, have not abandoned their medical heritage, which has been continuously restructured and enhanced over the years.
2016: A New Era for the Thermes de Saint-Gervais
The entire thermal building underwent a comprehensive renovation to showcase the star of Saint-Gervais: the Mont Blanc thermal water. An immersive journey guides visitors along the water’s path, from the snow-capped peaks down to its subterranean depths. Both indoors and outdoors, summer and winter, a series of interactive experiences allow guests to discover the many states and benefits of the water.
A unique destination to explore the extraordinary world of thermal water!
This restructuring also made it possible to create a seminar room with direct access to the rooftop terrace of the Thermes.
2021 : La forĂŞt sous la pluie
A l'Ă©tage, un nouvel univers de verdure dans lequel l’eau du Mont-Blanc est Ă l’honneur, est créé !
Tous les parcours de l'eau en montagne y sont interprétées et domptées pour approcher au plus près les sommets du bien-être.
Frequently Asked Questions About les Thermes de Saint-Gervais
Who visits the Thermes de Saint-Gervais today?
The Thermes welcome both spa guests seeking medical treatments—such as dermatology, respiratory care, or post-burn recovery—and visitors seeking wellness experiences. Guests can enjoy thermal baths and immersive sensory experiences. The spa also receives patients referred by specialised hospitals.
Is the thermal water still used for drinking, as in the past?
The traditional “drinking cure,” part of historical practices, is still offered today during thermal treatments, under medical prescription.
Are there any visible traces of the old Thermes?
Yes, the 19th-century chapel, the longère, and the 1906 well remain visible. For safety reasons, however, they are no longer accessible to the public.
Can the Thermes be visited solely for their historical significance?
While the Thermes are primarily a place for medical and wellness treatments, cultural events, conferences, and themed visits related to thermalism and water are sometimes organised in partnership with the town and local tourist offices.

