The Rio Moju is a river in the eastern part of Pará state in north-central Brazil, flowing as a tributary into the Acará River. The river is navigated by commercial barge traffic, as indicated by an incident where a pusher boat and barge struck a bridge over the waterway. This presence of commercial vessels is a significant hazard for paddlers, requiring constant vigilance and awareness of larger, less maneuverable boats sharing the channel. The river's aesthetic is defined by its role within the broader Amazonian river system, characterized by the surrounding tropical landscape of the region. For trip planning, resources like PaddleWays offer tools to view access points, water conditions, and land boundaries, which are essential for identifying potential launch and take-out locations. The overall paddling experience on the Rio Moju is shaped by its working river character, where recreational paddling coexists with industrial activity.