You can come and take a walk along our botanical trail to take in the fragrances issuing from aromatic plants such as thyme, wild thyme and oregano. There is also pleasure for the eyes, with a vast array of colours: the yellows of the rock rose, gorse and hypericum; the blues and violets of the bellflowers, blueweed and liverworts, from spring through to the start of autumn.
The different ecosystems of the Pic du Jer are ideal as habitat for mammals such as roe deer, red deer, wild boar, foxes and many others.
Whether as seasonal visitors or hibernating through the winter, bats can be observed on your underground hike through the caves. Look out in particular for the horseshoe bat, the commonest species to be found in the caverns.
There is no shortage of birds of prey, either: you have a good chance of spotting griffon vultures, black and red kites, kestrels, peregrine falcons and eagles. Some of them make their nests there, while others profit from the rising currents from the cliffs.
Let us not forget either the little sparrows that can be spotted way up high, and whose tuneful song will accompany you on your stroll.
Two emblematic animals are the pride of the Pic du Jer: the European mouflon and the Egyptian vulture (of which there are only around 50 pairs throughout the French Pyrenees).