The Rio Tapuio is a water body in the state of Maranhão, Brazil. It is situated near the town of Tapuio and is part of the broader river system in the region. A notable paddling route in the area is the Circuito Rio Preguiças, which is a moderate difficulty trail covering a distance of approximately 21.45 miles with an elevation gain of around 407 feet. This route is popular for kayaking and canoeing. Guided tours are available, such as a kayak tour operated by Costa Leste EcoAventura, which begins on the Preguiças River from the center of Barreirinhas. This tour involves rowing for about an hour and a half to reach the community of Tapuio, indicating that the Rio Tapuio is accessible via the Preguiças River and that Barreirinhas serves as a key access point for such excursions. The area offers planning tools for paddlers, including information on access points, water conditions, and land boundaries. The general character of the paddling experience is defined by its connection to local communities and natural settings, suitable for those seeking a moderate physical challenge on the water.