Rennes-les-Bains (Occitan: Les Banhs de Rènnas) is a commune in the Aude department in southern France with around 300 inhabitants. In summer many visitors come to enjoy the special atmosphere. 

Bathers have enjoyed the natural hot spring waters for thousands of years - they are still used today as a cure for many health problems.
Visitors enjoy the beautiful walks in nature, to the neighbouring villages Serres (Red Earth path, Pech Cardou), Sougraignes (source of the Sals river) and Bugarach (Mount Bugarach, beautiful lake ,...). 

Rennes-les-Bains is located in the micro-tourist region of Razès in the valley of the River Sals, with its source  5 kilometers away at Sougraigne.

It is 3 km from Rennes-le-Château, 20 km from Limoux, 48 km from Carcassonne, 103 km from Toulouse, 147 km from Montpellier, 253 km from Marseille, 267 km from Barcelona, 315 km from Bordeaux, 409 km from Nice, and 660 km from Paris.