Madrid environmental, sporting, leisure and cultural interest. Madrid Río provides a link with other green spaces in the city such as Casa de Campo and the Linear Park of the Manzanares River. The main landscaped area in Madrid Río is the Arganzuela Park, covering 23 hectares where pedestrian and cycling routes cover the whole park. The Madrid Río cycling network covers some and is linked to other bike routes. To the north, Madrid Rio connects to the Senda Real, the Green Ring for Cyclists and the E 7 (GR 10) trail, which goes as far as the Sierra de Guadarrama mountain
Cercanías Madrid Madrid as bedroom communities only started in the late 1960s, in two different parts of the metropolitan area: The main Madrid-Zaragoza-Barcelona line followed the valley of the Henares river, going through the important town of Alcalá de Henares to Guadalajara and Zaragoza. The towns around the line (Coslada, San Fernando de Henares, Torrejón de Ardoz, Alcalá itself) and some suburbs within the city of Madrid (Vallecas Villa, Vicálvaro) started to grow large bedroom communities, which relied heavily in the railway for commuting to Madrid. At the same time, the former rural towns of Alcorcón, Móstoles, Leganés, Fuenlabrada and Getafe (and