Cachoeira Poranga is a waterfall located in the lower section (Parte Baixa) of Parque Nacional do Itatiaia. The falls drop roughly 10 meters into a striking pool of green water, making for a scenic and rewarding destination.

The waterfall can be reached by a steep trail approximately 1. 5 km from the Centro de Visitantes, or via a shorter 600-meter path from the park entrance. The hike is rated medium difficulty.

The surrounding area sits within the Rio Campo Belo watershed, the same river that feeds other popular attractions in the park's lower zone.