7 Most Famous Natural Landmarks In South America

Lençóis Maranhenses National Park, Brazil

Located in northeastern Brazil, the Lençóis Maranhenses National Park is a low, flat and occasionally flooded land, filled with large sand dunes. It encompasses about 1,500 km2 (580 sq mi), and despite large amounts of rainfall, it has almost no vegetation. The rains cause an amazing phenomenon where fresh water collects in the valleys between the dunes, spotting the desert with blue and green lagoons. When the lagoons are at their fullest, between July and September, they can interconnect and connect to rivers, allowing fish to enter the lagoons.