Apulia offers some of the most significant examples of coastal wetlands. Partly of natural and partly of anthropic origin, each of these areas has a more or less elevated salinity.

The natural ones were mostly generated by the action of watercourses which, in the millennia, got isolated from the sea. An example of natural wetland is the ancient Lake Salpi.

The present salt-pans of Margherita di Savoia are a wetland of anthropic origin, but they were built on this very Lake Salpi, once it was reclaimed.

The wetland of the salt-pans of Margherita di Savoia is an area of great interest for the presence of several species of water-birds, both migratory and non-migratory.

In particular, some years ago the beautiful greater flamingos started breeding here, attracting the attention of naturalists.