The territory of the salt-works is a natural State Reserve declared as a Humid Area of International Interest.

The salt-works consist of a wide expanse of water measuring 4000 hectares, which takes on a red hue during summer due to the presence of “artemia salinis”, a micro-organism formed during the slow precipitation of salt.

Faunistically important from the ornithological point of view, this area is on the flight path of migratory birds from Africa to Northern Europe. It is the land of pink flamingoes, herons, royal swans, stilt birds and many other rare species of aquatic birds.