Étang de Lavalduc
Étang de Lavalduc, or La Valduc, is a saltwater lagoon, on a variable level, near the Mediterranean Sea, west of the Étang de Berre, north of Fos-sur-Mer. Ownership of the Salins du Midi, which have made it a storage tank for brine, the pond is located in three municipalities: Saint-Mitre-les-Remparts, Istres and Fos-sur-Mer, Bouches-du-Rhône. Its coloring of an iridescent pink blue is due to the presence of the small crustaceans such as Artemia salina.
Located at an average altitude of about 10 m below sea level, it is the lowest point in France.
