Thermes d'Aix-les-Bains Marlioz

Aix-les-Bains is one of France's great thermal cities, a UNESCO World Heritage Great Spa Town whose sulfurous springs at the edge of Lake Bourget — the largest natural lake in France — have attracted visitors since Roman antiquity when the city was known as Aquae Gratianae. The Thermes Marlioz, set in a wooded park on the hills above the city center, specializes in respiratory and ENT balneotherapy, channeling the sulfurous mineral vapors and waters into specialized inhalation treatments and thermal baths that form the heart of a long-established thermal medicine tradition. The surrounding park, dotted with century-old cedars and panoramic viewpoints toward the Bauges massif and the Dent du Chat, provides a contemplative green space for restorative walking between sessions. Recognized as part of the UNESCO Great Spa Towns of Europe, Aix-les-Bains blends its extraordinary lakeside Alpine setting, Belle Époque elegance, and long thermal heritage into one of Europe's most complete and historically distinguished wellness destinations.