The salt pan area is 20 km long and 5 km wide, with a total surface of about 45 square km; each year 30 millions cubic meters of marine water is used for the production of about six millions quintals of salt.
The clay soil guarantees a high level of impermeability.
The natural reserve has a great biodiversity of bird species, among which the pink flamingos, perfectly camouflaged with the salt pans (some areas are pink colored given the presence of the micro-algae Dunaliella salina, one of the few organisms that can live in hypersaline conditions).