Natural reserve in 1993 and Zone of Special Conservation in 1989 was declared. Belongs to the Network of Natural Spaces protected from Extremadura. Has a surface of more than 1500 ha. It is only to 10 km of Mérida. It is consequently visit required if it is come to the capital from Extremadura.

After us to have enthusiasm with art from Mérida Romans, the Roman art of what better is preserved world, us will fascinate to submerge us in the wild nature which is this Park of Mediterranean forest.

To lose in Cornalvo it is a delight. If you examine yourself while walking in silence by each one of his roads, you will receive his gifts, you will be able to feel his perfumes, those of the split, those of water, the perfumes of the flowers and the trees. We will be able to listen to its single sounds, the revolver of water between the stones, the song of one hundred species of birds. You will be able to admire with your animal eyes which do not live in any other place.

The best time to visit Cornalvo is the autumn or spring. This park although less knowledge than Monfragüe, is more central and is very accessible. In him one combines perfectly the nature conservancy with the human development.

Cornalvo is also famous to contain a prisoner of great capacity. It acts of a Roman construction which got at that time water in Mérida by a drain of some 25 km. Cornalvo lays out moreover another architectonic richness, the Dolmen of Lácara, in Aljucén. Cornalvo is a uniform landscape of only stopped undulations smooth by the mountainous formations of Bermeja Mountain and Mountain of the Moor. The park is crossed by the Aljucén River. One of the places most visited by the public is knowledge like "Berrocal of Rugidero", its name is with the deafening sound which causes water during the time of rains while passing by the caves and the hole of the rocks. The park is dominated by the oaks pastures and plantations of cork oaks, in some rather abrupt and timbered cases, as in the place of Borbollón and Raposeras.

We recommend that one visits the Port of the Moor, since where the extended pastures are considered, the mountains dense and the principal rivers. The scrupulous care that the owners of these grounds had avoided to it, had allowed that it hasn’t been transformed or hasn’t lost its natural richness.

As for their flora, the most abundant species are the oak - cork and the oak, and those associated them: the madroño, piruétano, labiérnago, red heather (an endemismo of Extremadura), lentisco, coscoja, will jara, fern, retama, jaguarzo and aulaga.

The fact that there is a mixed pasture, i.e., oak mixture and plantation of cork oaks, makes that Cornalvo takes into account a rich variety not only of flora but of fauna. There is also a vegetation of shore, that which appears in the centre river courses, as are the adelfas, which is tamujos, ashes, the willows, elms, which occasions make gallery by covering the way of the river completely.

To lose it is here one enjoyed for the directions. Varied and very extend it is the relation of animal species which they live in Cornalvo, while underlining: black stork, vulture black, vulture leonado, fitted eagle, eagle will culebrera, elanio blue, the falcon bee-keeper (weak species which nidifica in the park), black Milan, real Milan, ached eaglet, real owl, ánade, pullet of water, cat mountains, gineta, meloncillo, tejón, nourished, lynx.

The most representative fish in the park is the jarabugo, discovered for science in 1866 in the river of Aljucén, currently in danger of extinction. In what is amphibious, abound in the park an important species: the toad partero ibérien, also abound what is frog green and the frog of San Antón. Another animal that is easy to find in Cornalvo, but it is very weak in the Peninsula, is the European Galapagos.

The park of Cornalvo recommends to its visitors traverse the roads of walk, or while going or by bicycle and it gives six proposals, correctly signalised:

- Road of the Cord of the Hill of the Cat.
- Road Pastures of Cornalvo.
- Road of the Cord of the Port.
- Road of the Cord of Sta. María d' Araya.
- Road of Envalse of Cornalvo.
- Road of the place of Berrocal of Rugidero.

The protection whose the park enjoys Cornalvo contributes to maintain the richness of the fauna and to preserve it like emblematic regional geography of Extremadura spaces.