The Rio Pirapetinga is a river forming part of the border between the states of Minas Gerais and Rio de Janeiro in southeastern Brazil. Its geographical coordinates are approximately 21°43′S 42°16′W. The river's role as a state border is a key geographical characteristic. For paddlers, resources indicate that specific access points, boat ramps, and facilities exist to support kayaking and stand-up paddleboarding, though their precise locations are not described. The area around the river features several trails, including hiking paths, suggesting a recreational corridor with mixed-use potential. The overall character of the paddling experience is geared toward day trips, with an emphasis on accessing the water for an outing. No information is available regarding seasonal water levels, water temperature patterns, specific hazards, water quality, seasonal recommendations, or any paddling restrictions. The aesthetic appearance, wildlife, historical significance, and detailed route recommendations are not described.