Serra dos Brejoes at Chapada Diamantina ( Diamantina Plateau ) in Bahia State, Brazil - Chapada Diamantina is an erosional landform, a natural feature of the earth's surface. The breathtaking landscape, its huge canyons with rivers of brownish waters, the high altitude grasslands, known locally as Gerais, innumerous waterfalls and a great extent of trails, once used by miners in their search for diamonds, makes it one of the best destinations in the country for the practice of outdoor activities.