published by the instituto municipal de urbanismo pereira passos, with the prefecture of the city of rio de janeiro, only downloadable in a zip file, this excellent map shows the foresta da tijuca in great details - including trails, rivers, points of interest, waterfalls, mirantes, and dangerous areas to avoid.

all the caves of the tijuca forest can be seen listed at the bottom of the map as (25) Gruta Maior, (34) Gruta do Eleutério, (35) Gruta Perdida, (36) Gruta do Belmiro, (37) Gruta do Archer, (38) Gruta Luis Fernandes(ou dos Morcegos) (39) Gruta Solitária, (40) Gruta da Surucucu / Siriri, (42) Gruta Bernardo de Oliveira, (43) Gruta Paulo e Virgínia, (46) Gruta Gabriela, (47) Gruta da Cascata, (51) Gruta do café, (59) Gruta da Saudade / Lopes Mendes, (80) Gruta do Navio, (81) Gruta do Papagaio.