The park covers an area of over 40,000 hectares, and includes Alt Urgell, Cerdanya, and Berguedà Counties. The two large mountain ranges of Cadí and Moixeró meet at Tancalaporta Pass to create an impressive barrier extending over 30 kilometres.

Alt Pirineu Natural Park is the largest of its kind in Catalonia. It covers an area of nearly 70,000 hectares, spanning Pallars Sobirà and Alt Urgell Counties. The highest peak is Pica d'Estats (3143m), which is also the highest mountain in Catalonia.

Garrotxa Volcanic Area Natural Park, with 40 inactive volcanoes and over 20 basalt lava flows, is the best example of volcanic landscape in the Iberian Peninsula. 

This is the second largest wetland area in Catalonia, made up of a network of ponds and meadows located at the confluence of the Rivers Muga and Fluvià. 

Cap de Creus is a place of great natural beauty located between land and sea, with an exceptional geological configuration, and rocky structures and outcrops that make the area unique in the world. The north wind has eroded the rocks into whimsical shapes and transformed the landscape in a special way.