Departure from one of the Peyragudes car parks. There are several around the roundabout at the start of the route.
(S/E) Take the D117 to the roundabout. Turn right and start climbing straight away. Continue along the Crête de Sérias and you will arrive at the top of the Sérias chairlift. You will have covered 2 km and climbed 300 m: this is the steepest climb.
(1) Continue along the trail, which is marked in places, until you reach the Col de la Flamme.
(2) At this pass, you will find the departure station for the Télésiège de la Flamme chairlift, which you will pass by continuing straight up the trail. You arrive at the top of the chairlift and turn left, heading south, leaving the wide trail to quickly reach the Cap de Pales chairlift, where there is a picnic area high up with a footbridge over the void for a good view of the lake.
(3) Continue on to reach the edge of Lake Boum de Soulas.
(4) Continue and turn left at the intersection to pass under the Cap de Pales chairlift.
(5) The circular route continues along a well-marked path, which includes the most difficult section, approximately 50 metres long, a narrow path on the side of a hill, with a steep gradient and rocky terrain. Pass under the Flamme chairlift and turn right to reach the fork in the path at the start of the chairlift.
(2) Then all that remains is to return to the resort. Either take the same route as on the way there or turn left onto the track as shown on the map. Pass under the Privilège chairlift and then under the Cabanou chairlift.
(6) About twenty metres further on, take a grassy path on the left that descends straight towards the buildings and passes under the Privilège chairlift again.
(7) Follow the road to reach the Peyragudes resort and the car park where you started (S/E).
. We ate at a picnic area with a viewpoint overlooking Lake Boum.