for a brief period in 1917 ilha do rijo housed the brazilian navy aviation school (escola de aviação naval - eavn). ilha d'água, which is a little bigger than its neighbors, has a petrobrás terminal (petróleo brasileiro s. a. - petrobras) located on it, filling the island with large tanks that store oil and oil products. ilha seca can be seen just south of ilha do governador across from praia do alentejo, and ponte da cousa má.
