Açude Manoel Balbino, also known as Açude dos Carneiros, is a reservoir located in the municipality of Caririaçu in the state of Ceará, Brazil. It was constructed by the Departamento Nacional de Obras Contra a Seca (DNOCS) and completed in 1985. The reservoir has a total capacity of 37.18 cubic hectometers, with a useful volume of 37.08 cubic hectometers and a minimum volume of 0.10 cubic hectometers. It drains a total area of 41.70 square kilometers. The water body serves a public utility function, with its water being deliberated for use, including perenizing the Vale dos Carás alongside another reservoir. The surrounding area is described as beautiful and offers significant hiking opportunities, with a notable 49.1 km route nearby featuring an elevation gain of 1,101 meters. Paddlers should verify current access and any usage restrictions directly with local authorities prior to planning a trip. The water level can fluctuate, as indicated by reports of its volume increasing significantly over short periods, which could affect shoreline access and the overall paddling environment.