one particularly popular apa is the parque da cidade de  niterói, just across the guanabara bay from the heart of the city, offering incredible views and a more relaxed alternative to the bustle of rio de janeiro city.

the paper uso público em unidades de conservação (public use of units of conservation), by márcia dieguez leuzinger explores this topic and describes various types of conservation unit in more detail.

the secretaria municipal de médio ambiente rio de janeiro makes this map of the terrains in rio de janeiro available for interactive use.

on the map it is possible to select type or terrain, type of vegetation, sandbanks, and areas with protected status - selecting the type of information desired will refresh the map accordingly.