The Rio Novo is a river located within the Jalapão State Park in the municipality of Mateiros, Tocantins. It is a tributary of the Tocantins River and is noted for its exceptionally clean, potable water, considered one of the few remaining drinking water rivers in Brazil. The river's character offers a dual experience. One section provides a tranquil environment suitable for gentle kayaking, where paddlers can enjoy the clear water and the surrounding banks, which may shelter wildlife. In contrast, other stretches of the Rio Novo feature strong currents and a series of class III and IV rapids, making it a destination for adrenaline-filled activities like rafting. Multi-day rafting expeditions are a common offering from local eco-tour operators.

Access to the river for guided tours is often facilitated through local safari camps, such as the Korubo Safari Camp, which serves as a starting point for organized trips. These guided tours are emphasized for ensuring a safe experience, particularly on the more challenging rapids. The river is also known for its freshwater beaches, or "praias," which form along its course within the state park. The overall setting is within the remote and protected ecosystem of Jalapão, contributing to a sense of wilderness adventure. Paddlers should plan their visit through licensed tour operators who manage access and provide necessary equipment and safety guidance for navigating the river's varied conditions.