Park near the town hall and the "À l'entente Cordiale" monument or on Route de Fillols.
(S/E) Take the road towards Fillols and descend 100 metres further along Chemin des Escoumeilles until you cross the River Saint-Vincent (Ribera de Sant Vincenç) via a wide footbridge.
(1) Turn right towards Refuge de Bonne-Aigue and continue for about 100 metres.
(2) Turn left (white and yellow markings) onto Chemin de Saint-Jean. Cross Route de Fillols (D27) and continue straight ahead on the cement-lined track towards Massif du Canigó. You will come to a crossroads in an open area (Sant Joan on the IGN map). Take care.
(3) Keep to the right, following the sign for Tour du Cogollo. You will come to a fork at the edge of the forest.
(4) Turn right towards the monument and the viewpoint.
(5) Stele dedicated to the Maquis Henri Barbusse. Turn back to the previous fork.
(4) Continue right along the path, passing in front of a beautiful orri. You will reach a crossroads.
(6) Leave the path that leads to the Bonne Aigue Refuge.
Climb up, keeping to the far left, towards Pic Cogollo (Cogulló). Pass the highest point of the hike (altitude 1503). Descend a little and climb back up to a new viewpoint (altitude 1494).
The true summit of Pic Cogollo is a little further to the left; the rock near the post box is not the summit.
(7) Then descend towards Fillols until you reach another fork.
(8) Turn right towards Fillols and Vernet and you will reach an ambiguous crossroads.
(9) Leave a path on the right that leads to the river and a track.
Continue a little further, passing another path on the right. Turn completely left towards Vernet.
(10) Leave a path on the right and continue straight ahead until you reach the Coll de Juell junction (elevation 899).
(11) The path opposite will take you back to Sant-Joan.
Turn right and head towards the Vieux Col de Fillols (Coll Vell on the map).
(12) Descend to the left towards Vernet, after the goat farm, arrive at the road (D27), turn left onto it for about 75 metres and, just after a road bridge, look for a path on the right.
(13) Turn right onto this path and head towards Vernet. Continue to the large footbridge.
(1) Continue straight ahead and return to the car park near the town hall (S/E).