Go in winter to see snow in the Alentejo, go in summer to cool off under the shadow of leafy trees, go in spring when the mountains fill with colour and in autumn when the oak and chestnut trees are decked in all colours.

Here, in the westernmost part of the portuguese-spanish mountain range, the landscapes that mark the difference between the north and south of Portugal come together. There are oaks, chestnuts and pines side by side with cork oaks, vineyards, holm oaks, orchards and olive groves, as well as limestone, schist and granite.

Choose from among the various routes, and discover on foot a thirty-one-thousand-hectare treasure. Venture into caves inhabited by the largest colony of bats in Europe. Be surprised by deer, wild boar, foxes, and, of course, watch the sky, where rare birds fly, such as Bonelli's eagle, the park's symbol.

The cultural and historical legacy of this area is also a privilege. Be sure to go to Marvão, a charming walled village on a hilltop, from where you can gaze over a vast extent of Portugal and even as far as Spain.