Lagoa Azul (Blue lagoon) and sandy dunes at Parque Nacional dos Lencois Maranhenses, Brazil, South America

americas blue lagoon brazil brazilian color color image colour contemporary curved day daytime dune lagoa azul landscape lencois maranhenses national park natural world nature nobody outdoors outside park parque nacional dos lencois maranhenses photography physical geography sand sand dune sandy scenics south america south american surface processes topography travel travel destinations water white