In Tarascon-sur-Ariège, head towards Vicdessos. Pass Niaux, Capoulet and, two kilometres further on, at the entrance to Laramade, turn right onto the D24 towards Siguer. At the end of the village, take the small D 224 road on the left. Continue to its terminus at the Bouychet car park (925 m).
(S/E) At the top of the car park, take a path (signposted) which climbs quite steeply from the start. Turn right and the slope becomes gentler. The path climbs south-south-east up the Escale valley. It arrives at a first footbridge.
(1) Cross over and continue on the left bank. The path is paved and leads to a second footbridge.
(2) Cross and return to the right bank. The valley widens and arrives at the Jasse de Brouquenat d'en bas, Pont de la Peyre (1,492 m).
(3) Cross and, at the junction, leave the Étang de Gnioure path on your right and continue to the left. Go up the valley. A little further on, walk along the Étang de Brouquenat d'en haut.
(4) Continue to follow the Brouquenat stream until you reach the hut of the same name.
(5) Continue climbing up the valley to the Pont de Gespedière bridge.
(6) Cross it and pass the Jasse des Planes. You will reach a first ledge, which you climb on the right, then a second on the left. You will arrive at the Étang du Peyregrand.
(7) After spending some time enjoying the lake, return via the same route, descending to the Bouychet car park (S/E).