The Manzanares is a river in central Spain, a tributary to the right of the Jarama, which in turn is a tributary of the Tagus. This river, which flows entirely through the Community of Madrid, rises in the Sierra de Guadarrama, in the Ventisquero de la Condesa- the southern slope of the Cuerda Larga, near the Bola del Mundo-, and passes through Madrid. It flows into the Jarama River, in the municipality of Rivas-Vaciamadrid, after a journey of 92 km.

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On its way through Madrid, carps, barbels, carp, gobies or catfish are some of the species that can take the bait. The requirement to practice this sport is to have the fishing license of the Community of Madrid. Authorised mode: catch and release. No taking the fish home.