On leaving Gèdre towards Gavarnie, turn left onto the road to Héas. Park in the large car park at the Chapelle d’Héas.
(S/E) Stay on the road until you reach a small car park where the path, marked by a yellow sign, begins.
(1) Take this path to the left; at the next junction, carry on straight ahead, leaving the sign for the Cabane de l’Aguila on your left. Follow this well-marked path along a very gentle slope until you reach the Touyères water intake. This is where the Pyrenees National Park begins.
(2) Continue along the path, keeping to the right bank of the stream, before reaching the wide hairpin bends that end at the junction for the Cabane des Aires.
(3) Take the almost flat path on the right to discover the first two Aires lakes.
(4) Pass between these two lakes, then follow a very gentle climb to reach the other two. Go round them and walk gently along level ground before tackling the short climb through the mountain pasture leading to the Vierge de Troumouse.
(5) The Vierge de Troumouse hut.
(6) Head back down, veering slightly to the right, to reach the upper car park on the Route de Maillet (D922).
(7) From this car park, take one of the various paths that cut across the bends in the road to reach the car park at the Auberge de Maillet.
(8) Continue by turning right onto the path that cuts across the bends in the same road to reach the first junction after the toll hut.
(1) Retrace your steps along the route you took on the way there to return to the starting car park (S/E).