from rio's zona sul, praça xv is easily reachable via taxi in 15 minutes, or via several buses routing along copacabana and ipanema. the metrô station estação carioca is about a 10 minute-walk away from praça xv. on this link, the institudo estadual do ambiente - inea, provides the bathing suitability of several beaches in niterói, including praia de gragoatá.
