travel time from ipanema to praia de piratininga, the final point of the bus line, varies between 80 and 100 minutes.  

alternatively, bus line 354 (cidade de deus x praça xv) starts from ipanema near praça general osório and can be taken along nossa senhora de copacabana, to praça xv.

at praça xv, bus 354 stops underground, in a tunnel not far from the terminal hidroviário da praça xv & estação das barcas, the boat terminal.