Saint-Gervais-les-Bains is a commune in the Haute-Savoie department in the Auvergne-Rhône-Alpes region, southeastern France. The village is best known for tourism and has been a popular holiday destination since the early 1900s. It has 445 km of pistes, the third largest domain exclusively in France, and is one of the least busy ski areas of its size. In 1892, two hundred people were killed when a water pocket in a glacier above the town suddenly burst open and caused flooding.