Park in the Baraque de Chaalis car park, at the crossroads on the Longue Route.
(S/E) Head south-west towards the memorial.
(1) At the Bosquet de Dammartin signpost, take thefirst path on the left. At the next crossroads, take thesecond path on the right, which is sandy. Continue straight ahead (south-east) for about 700 m.
(2) When you reach the paved road, turn left. At the Futaie signpost, before a barrier, turn right at an acute angle and follow a narrow path to the Sainte-Lucie crossroads.
(3) Then veer slightly left (south-southwest). At Carrefour des Cognassiers, turn left.
(4) At the next crossroads (Carrefour Saint-Barthélémy), turn right at a sharp angle. After about 400 metres, turn right. Immediately pass a path on your left and after about 40 metres, go down to the left onto a straight, very sandy path. At the bottom, at a T-junction, turn right at a 90° angle.
(5) At Carrefour du Grisard, take thesecond path on the left. After about 100 metres, take thefirst path on the left. At the next junction, turn right.
(6) At Carrefour du Bosquet Rond, take thefirst path on the left at an acute angle. At Carrefour du Tremble, go straight ahead (south-west). At the next junction, continue straight ahead (west).
(7) At the next intersection, turn right (north-west). Cross a paved road (Chemin du Frêne) and continue north-west on the road that climbs opposite. Leave a road on your left and turn left for 100 metres until you find a road on your right (altitude 100 metres).
(8) At the top of the hill, turn completely right. Ignore a path on the right and immediately come out onto Route Sainte-Marguerite (GR®1). Follow this wide path to the right (south-east) until you reach a large crossroads (Poteau Sainte-Marguerite).
(9) Take thesecond path on the left (with heather). At the next crossroads, turn right and then immediately left. Continue straight ahead for about 500 m.
(10) At the crossroads, turn left. After about 200 m, make a quick detour to the right to see the memorial to the plane crash of 23 March 1974. Continue along the main path.
(1) Continue straight ahead to the car park (S/E).
