The Lençóis Maranhenses National Park is dominated by an incomparable landscape. It is formed by successive chains of dunes interspersed by temporary and perennial lagoons that dazzle tourists from all over the world. Along the 80 km of coastline of the park, there is a flat beach with width between 600 m
and 2 km that find dunes with heights between 10 and 20 m. Connected to each other, the barchan dunes form long winding chains with up to 75 km of extension that penetrate more than 20 km towards the interior.