The Rio do Sangue is a river located in the state of Mato Grosso in western Brazil. It flows as a tributary into the larger Juruena River. The river is noted for its exceptionally clear, crystalline water, creating a striking visual effect where boats appear to float on air. The surrounding landscape is part of the Amazon region, with references to forested areas and clearings visible from the river, such as one near a location called Tombador approximately ten miles downstream.

For paddlers, the river offers opportunities for kayaking and paddle boarding. General planning resources indicate the existence of access points and boat ramps, though specific locations are not detailed. Similarly, while facilities for an "unforgettable day on the water" are mentioned, their exact nature and availability are not specified. There is no information regarding seasonal water temperature patterns, water quality issues, specific hazards, seasonal recommendations, defined routes, size characteristics, or any paddling-specific regulations or restrictions. The overall character of the paddling experience is defined by the river's remarkable water clarity and its setting within the Mato Grosso landscape.