Are both Doñana National Park and Guadarrama National Park areas of marshes, streams, and sand dunes?
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. Guadarrama National Park:  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). Doñana National Park: Doñana National Park is a natural reserve in Andalusia, southern Spain, in the provinces of Huelva (most of its territory) and Seville. Doñana National Park:  The park is an area of marshes, shallow streams, and sand dunes in Las Marismas, the delta where the Guadalquivir River flows into the Atlantic Ocean.
no