La Pletera is a salt marsh separated from the sea by a band of coastal dunes. It often floods in winter and dries out in the summer. With the Life project, three new lagoons have been created where Spanish toothcarp have been released. The vegetation is dominated by glassworts and sea purslane, plants which can cope well with being immersed in salt water for long periods and which store water to balance excess salt. You can also see birds there, like stilts, redshanks and ortolan buntings.