Pavuna river is located in the State of Rio, passing along 3 cities: Nilópolis, São João de Meriti, and Rio de Janeiro. This river set the boundaries between São João de Meriti and Rio de Janeiro. It has 14 km length, with his headspring located in Bangú (city of Rio de Janeiro). Belongs to watershed São João de Meriti, the end of its course is  Guanabara Bay.