Park at the Hospice de France car park.
(S/E) In front of the Hospice de France building, take the path that climbs towards the Port de Vénasque.
(1) Once past the Pont de Penjat, turn right onto the Chemin de l’Impératrice, which winds through the woods. The path is fairly flat, but watch out for slippery rocks.
(2) When you reach the Cirque de la Glère, ignore the path branching off to the right and stay on the path that climbs gradually. Watch out for stream crossings, which can be slippery.
(3) At the junction, turn left, ignoring the path on the right which climbs to the Col de Sacroux. The path climbs steeper and steeper and turns into a series of hairpin bends.
(4) A strenuous climb through scree. The path is very steep towards the end: follow the yellow dot markings on the rocks.
(5) Arrival at Port de la Glère: view of Aneto. You can then descend to Ibón de Gorgutes to cool off.
(6) Climb back up to Port de la Glère and return via the same route, in the opposite direction, to the Hospice de France (S/E). Take care of potentially slippery rocks during the descent from the cirque.