Lençóis Maranhenses National Park

The Lençóis Maranhenses National Park is a protected area on the northern Atlantic coast of Brazil. It is known for its vast desert landscape of large white sand dunes and seasonal rainwater lagoons. Lagoa Azul and Lagoa Bonita are two of the largest lagoons. The park's diverse ecosystem includes mangrove swamps. The neighboring cities of Barreirinhas and Santo Amaro do Maranhão serve as the gateway to the park. © Wikimedia / Artur Warchavchik