Once you navigate through the narrow streets of Laruns, the D934 road doesn't take a left turn towards the Col d'Aubisque; instead, it continues along the Ossau valley towards the Col du Pourtalet, which is a distance of 29km. There aren't any particularly savage gradients on the pass, and it's simply the extent of it that makes it such a challenge. It commences dramatically through a tunnel to enter the narrow Gorge du Hourat. Above it lies Eaux-Chaudes, its warm waters stil
