ilha grande an island located in the municipality of angra dos reis, in the costa verde region in the south of rio de janeiro state, and it is accessed by ferry from both the city of angra dos reis and mangaratiba - one can get to angra dos reis and mangaratiba by car or bus, and  once there, the options to travel to the island are as below.

the same bus line that gets to angra dos reis, also stops in mangaratiba along the way - buses from rio de janeiro's novo rio bus station to angra dos reis depart daily on the hour, with with the bus company empresa costa verde.

the bus company costa verde can be contacted by calling 21 2233.3809 or 24 3365.018, or via their website on this link - once at mangaratiba or angra dos reis the options include private schooners, a ferry, or private water taxis.