Lencois Maranhenses National Park is located in Maranhão, Brazil. It is known for its unique landscape that features large, rolling sand dunes, clear blue lagoons, and diverse vegetation. The park covers an area of over 1500 square kilometers and is one of the most visited tourist destinations in the country.

The lagoons that form in the sand dunes during the rainy season attract many visitors, who come to see the stunning turquoise waters surrounded by desert-like sand dunes. The park is also home to a variety of wildlife, including monkeys, birds, and reptiles.

Visitors to Lencois Maranhenses National Park can explore the area on foot, by horseback, or by jeep, and there are many guided tours available to help visitors make the most of their experience. The park is also a popular destination for camping and ecotourism, as it offers a unique opportunity to explore a truly unique and pristine environment.