leaving from ipanema, there are two companies offering the service between rio de janeiro and niterói: braso lisboa onibus, and auto viação 1001. schedules and itinerary can be seen on this page by braso lisboa, and on this page by auto viação 1001.

if going by ferry, boats to niterói leave from praça xv de novembro in central rio de janeiro and get to Praça arariboia in niterói every 20 minutes.