1. Somiedo Nature Reserve In Asturias
It is one of the most rugged landscapes in Asturias, with slopes rising from 400 to 2,200 meters and covering an area of 283 square kilometers. Mountain meadows, can be found throughout the entire landscape with fertile pastures where you can see the area’s famous thatched stone cabins used by nomadic herdsmen.
2. Arribes Del Duero In Salamanca
This Nature Reserve extends across 106,105 hectares in the west of the provinces of Zamora and Salamanca, delimiting part of the border between Spain and Portugal. The main attraction of the Arribes del Duero is the extensive series of canyons and cliffs, which make up the most extensive group of canyons in all of Spain.
3. El Tiemblo Nature Reserve
Located in the province of Avila, this is one of the most popular excursions to do from Madrid in fall. Once you get to the parking lot you must pay 2€ per person and 6€ per car, even though there is a bus that takes you to the reserve for just 2€. The circular route is pretty flat and easy to walk even if you are with kids. You will be surrounded by chestnut trees with beautiful foliage.
4. Sierra De Cazorla In Jaen
Located in the north-western corner of the province of Jaen, like a huge and invulnerable fortress, lies an endless succession of rugged mountains and one the most extensive forested areas in Spain. This Nature Reserve has an area of 200,000 hectares and spectacularly beautiful scenery, as well as being home to various species which are unique in the world.
5. Posets-Maladeta Nature Reserve in Huesca
The Maladeta Massif constitutes the most important and emblematic set of summits of the whole Pyrenees. Located in an incomparable natural environment and famous for its preservation, it contains the few remaining Pyrenean glaciers, dotted with numerous lakes and waterfalls. This is the perfect spot to enjoy the amazing colors of fall in an unforgettable scenery.