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--) .
Extremadura Extremadura ( ; ] ; Extremaduran: "Estremaúra" ] ; Portuguese: "Estremadura" ] ) is an autonomous community of western Iberian Peninsula whose capital city is Mérida, recognised by the State of Autonomy of Extremadura. Its compounded by the two largest provinces of Spain: Cáceres and Badajoz. It is bordered by Portugal to the west; by provinces of Salamanca and Ávila (Castile and León) to the north; by provinces of Huelva, Seville, and Córdoba (Andalusia) to the south; and by provinces of Toledo and Ciudad Real (Castile–La Mancha). Its official language is Spanish.