The Rio Curuá-Una is a 93-kilometer-long river in the state of Pará, Brazil, flowing as a right tributary into the Amazon River. Its course is characterized by a main channel with two tributaries and one distributary. A significant feature affecting the river's character is the Curuá-Una dam, constructed in 1977, which creates a reservoir. This impoundment alters the natural flow and creates a large, lake-like section of water. The river is situated in the heart of the Amazon region, and a journey along it provides access to unique ecological sights. Notably, it offers passage to the Vitória-Régia lake, a habitat famous for its giant water lilies. The area is also known for fishing opportunities, and the reservoir itself has been a site for environmental studies, including the translocation of Amazonian manatees in the early 1980s. The presence of the dam and reservoir suggests that put-in and take-out locations would logically be associated with this infrastructure and the towns near it, such as Santarém, which is a regional hub. The overall paddling experience is defined by a tropical Amazonian environment, with the reservoir section offering broad, open water and the river sections providing a more traditional flowing watercourse. Water-based tourism exists, including riverboat journeys on the tributary.