Costa Verde is a region of the state of Rio de Janeiro. It is bordered by the Valley Region and São Paulo State to the north, and Grande Rio.
The Costa Verde ("Green Coast") is the area surrounding the conjoined Bays of Ilha Grande and Sepetiba, with Ilha Grande occupying a position between them. It was an area of great importance in the colonial history of Brazil, and today many of the towns have a well preserved historic downtown. That, in combination with beautiful mountains and beaches, plus 365 islands in the twin bays, attracts a great many tourists, both weekender locals from Rio de Janeiro and travellers from across Brazil and around the world.