Parque Nacional dos Lençóis Maranhenses

Discover a truly unique landscape in the Parque Nacional dos Lençóis Maranhenses, a national park that defies expectations of what a desert can be. This vast area, spanning over 600 square kilometers, presents a remarkable paradox – a combination of white sand dunes, rising to heights of 20 to 130 feet, and crystal-clear freshwater lagoons. These dunes are constantly sculpted by winds averaging 25 to 35 mph, creating a dynamic and ever-changing environment.

The secret to these ephemeral pools lies beneath the sand: a layer of solid clay retains approximately 47 centimeters of rainwater each year. During the wet season, this moisture transforms the landscape, giving rise to thousands of seasonal lagoons, some stretching up to 300 feet in length and 10 feet deep. From June to September, these lagoons create a breathtaking spectacle of blue and white, mirroring the patterns often observed on Mars – a fact that led NASA to select this region as a model for their planetary research.

Visiting Lençóis Maranhenses is an experience unlike any other, a testament to the power and beauty of nature’s rhythm. The region’s shifting landscape embodies a temporary form of life, dictated entirely by the cycles of rain and sun. Recent reviews consistently highlight the park’s stunning beauty and the helpfulness of local tourism operators. Planning your trip involves considering the best time to visit, typically between June and September, when the lagoons are at their fullest. You can reach the park by car or by utilising local autocarro services from nearby towns.