Maraú is a municipality in the state of Bahia in the North-East region of Brazil. The municipality is located in a peninsula called "Península d…Maraú is a municipality in the state of Bahia in the North-East region of Brazil. The municipality is located in a peninsula called "Península de Maraú", physiographic area called "Região Cacaueira". The city is rich in minerals, especially oil shale gypsum and oil.