The town of Fertilia was founded in 1936 as part of the vast programme of land reclamation of the Nurra area. The beach of Fertilia, dominated by the fret-worked bell tower of the Parish Church of San Marco, is covered by spotless fine white sand, lapped by an extraordinarily limpid sea. Just like the neighbouring beach of Maria Pia, it is formed of bands of dunes that separate the sea from the Calic lagoon, a 97 metre-wide expanse of water, home to many fascinating species of birds such as flamingos.