bus 7003 does not enter the bus terminal but stops in front of it - the bus terminal is easily recognizable on the right side of the bus, and  many passengers get off the bus at that stop. 

at the same stop, the bus terminal, bus line 47, 47/a, 47/b displaying '47 canto do rio x centro' or '47a campus da uff (circular)' or '47b campus uff - mac circular'  reaches praia das flexas in about 20 minutes.

travel time from ipanema to praia das flexas, varies between 50 and 80 minutes depending on traffic and time of day.