From the pass, a rough track leads to the Pic du Midi de Bigorre observatory. Up to the Col de Laquets (elevation ) this track is a dirt and gravel road. The part between the Col de Laquets and the observatory is a steep and narrow hiking track. Some terraces of the observatory can be entered for free from the end of the track. Paying an entrance fee, one can enter the actual observatory and also take the cable car down to La Mongie.