Camargue is a natural region located south of Arles, France, between the Mediterranean Sea and the two arms of the Rhône delta. The eastern arm is called the Grand Rhône; the western one is the Petit Rhône.
Administratively it lies within the department of Bouches-du-Rhône, (Mouths of the Rhône), and covers parts of the territory of the communes of Arles, Saintes-Maries-de-la-Mer, and Port-Saint-Louis-du-Rhône. A further expanse of marshy plain, the Petite Camargue (little Camargue), just to the west of the Petit Rhône, lies in the department of Gard. Camargue was designated a Ramsar site as a "Wetland of International Importance" on 1 December 1986.
The Camargue is western Europe's largest river delta. It is a vast plain comprising large brine lagoons or étangs, cut off from the sea by sandbars and encircled by reed-covered marshes. These are in turn surrounded by a large cultivated area. The Camargue is home to more than 400 species of birds and has been identified as an Important Bird Area (IBA) by BirdLife International. Its brine ponds provide one of the few European habitats for the greater flamingo.