Lagoa de Rabil (Rabil Lagoon) is located on Boa Vista Island. The Ramsar Site is made up of the Ribeira do Rabil permanent coastal lagoon, the dune ecosystems at the end of the watercourse and the associated tree and shrub formations. It is home to a large number of species typical of dune and arid regions, which are of great importance to the maintenance of the biological diversity of the Macaronesian ecoregion and the entire Palearctic region, including West Africa. Bird species include the greater hoopoe-lark (Alaemon alaudipes), the bar-tailed lark (Ammomanes cinctura), the black-crowned sparrow-lark (Eremopterix nigriceps), the sanderling (Calidris alba), the bar-tailed godwit (Limosa lapponica), the Spanish sparrow (Passer hispaniolensis) and the endemic Iago sparrow (Passer iagoensis). The Site is currently used for leisure and tourism activities, above all birdwatching, quad bike tours, and windsurfing and kitesurfing in the lagoon.