The Manzanares River is a river located in central Spain, flowing through the region of Madrid. It is approximately 92 kilometers long and is a tributary of the Tagus River. The river originates in the Sierra de Guadarrama mountains and travels through various landscapes before reaching the city of Madrid. In Madrid, the Manzanares River is known for its scenic parks and recreational areas, such as the Madrid Río park, which offers walking and cycling paths along the riverbanks. The river plays a significant role in the local ecosystem and provides a habitat for various species of wildlife.