The Rio Manso is an approximately 80-kilometer-long river in the state of Mato Grosso, Brazil, and is a tributary of the larger Cuiabá River. The river flows through the subregions of Mato Grosso and has a maximum upstream distance of 700 kilometers from its mouth. It features a network of four tributaries and one distributary. The river's primary character is defined by its appeal to anglers, being noted as a destination for fly fishing and for catching large, aggressive fish, which suggests a dynamic aquatic environment. While specific paddling routes are not detailed, the river's length and tributary system indicate potential for multi-day exploratory trips. The adjacent Lago do Manso, fed by the river, is noted for its serene waters that invite water sports like kayaking and paddleboarding, offering a contrasting, calmer experience to the flowing river. Information on specific public access points is limited, though it is noted that there are some public boat ramps in varying states of conservation. For paddlers, this underscores the importance of local knowledge; hiring a knowledgeable guide is recommended to navigate access and conditions safely. The area's focus on sport fishing means paddlers should be aware of potential boat traffic from anglers. The overall vibe is that of a specialized natural destination within the Brazilian interior, where preparation and local guidance are key for a successful paddling trip.