visitors interested in entering forests or other areas of environmental protection, wild beaches, or any other region where nature is more present than humans, should read the rules of conduct, as prepared by the ministry of the environment of brazil and posted on this page.  

published by the ministério do meio ambiente (ministry of environment), the 400-page report mata atlântica - patrimônio nacional dos brasileiros (atlantic forest - national patrimony of brazilians) is a precious source of information spanning the entire country, with rio de janeiro appearing in more detail on page 171.