Head towards Bedous. After the Bedous hill, at the start of the descent and after the memorial stone, turn left at the cross, then immediately left again. Pass a recycling collection point, take a hairpin bend to the left and continue along the road, stopping wherever you like. Take care not to obstruct traffic.
(S/E) Follow the track up to the TV relay station and negotiate three successive hairpin bends.
(1) About a hundred metres after the last bend, take the old track on the left (stone and wood) through the woods, which serves as a shortcut by cutting across a long hairpin bend on the track, and rejoin the track a hundred metres further on.
(2) Take the old, better-defined grassy track opposite, rejoin the track and continue uphill. Reach the Lescanet fountain.
(3) Continue along the track to the television relay station.
(4) Turn right to climb along the ridge, following a path (which does not appear on IGN maps but is clearly marked on OSM). Reach the summit of Biscarce and enjoy the view.
(5) Head right to descend the ridge as best you can, avoiding the brambles, until you reach an old ruined hut, about a hundred metres before the Col de Biscarce.
(6) Turn right onto the grassy slope and head straight down to the TV relay track, near the Lescanet fountain.
(3) Follow the ascent route in the opposite direction to return to the car park (S/E).