Preview Freshwater lake and sand dunes at Ilha Grande de Santa Isabel, Parnaiba River delta, Piaui, Brazil, South America Image ID: 920-1176 Artist: Andre Seale Purchase a commercial license Buy framed prints & more from our print store algae dunes dune growth horizontal ilha grande de santa isabel lake lakes landscape parnaiba parnaiba river piaui sand dune sand dunes travel water landscapes scenics day outdoors brazil south america