Which park in Spain is bigger Guadarrama National Park or Atlantic Islands of Galicia National Park?
Guadarrama National Park Sierra de Guadarrama National Park (in Spanish: "Parque Nacional de la Sierra de Guadarrama") is a national park in Spain, covering nearly 34,000 hectares, the fifth largest in Spain's national parks system. The Guadarrama mountain range ("Sistema Central") contains some ecologically valuable areas, located in the Community of Madrid and Castile and León (provinces of Segovia and Ávila). The law that regulates the recently approved national park was published in the BOE in  26, 2013 (2013--) .
Alt Pirineu Natural Park Alt Pirineu Natural Park (Catalan: "Parc Natural de l'Alt Pirineu" ) is the largest natural park in Catalonia, Spain. The park was established in 2003 by the Generalitat de Catalunya and covers an area of 69850 ha , including the highest peaks of the Pyrenees in Catalonia. It stretches over the comarques of Pallars Sobirà and Alt Urgell.