Start : Depart from Marchastel church (parking).
(S/E) Between the cemetery and a large building called "Le Château" (self-catering cottages), take a path heading West (blue markings, sign). The path descends between low stone walls to the D900.
(1) Follow the road to the right for about 300 m. Take a path between low walls, which leads off to the right towards Puech del Pont, and follow this path Northwards.
(2) Leave the path between the low walls and climb the meadows to the left, leading to the summit of Puech del Pont (superb panorama).
(3) Retrace your steps back to the path between the low walls.
(2) Continue left (West-North-West) to a small road.
(4) Follow the road to the left (South-West) (GR®65, Red and White markings). Join the D900 shortly before the old bridge over the Bès, and turn right.
(5) Cross the old bridge over the Bès and continue along the road. Ignore a small road on the left and, immediately afterwards, turn right onto a gravel track which climbs towards Montgros. Join a small road, which you take to the right (West) to reach the village of Montgros, which you pass by.
(6) Leave the tarmac road to the left and take the track straight ahead, which continues Westwards.
(7) Cross a small road and, after about 250 m, reach a crossroads.
(8) Leave the GR® and turn left, due South (not signposted). Rejoin the D900 at a hairpin bend. Cross the road and continue straight ahead.
(9) At the fork in the road, take the left-hand path. Join a path (yellow markings) and head straight on. Continue South-East then due East until you come to a road (D52) at a car park.
(10) Take the path opposite towards Cascade du Déroc (signposted, yellow markings). Reach the Grange du Déroc.
(11) Turn right and go to the top of the waterfall, then descend to its base.
(12) Retrace your steps.
(11) Turn right down the path. At the T-junction, turn right onto a small road.
(13) Follow this small road, heading East-North-East, ignoring a bridge on the right and continuing North-East. Join the D900 near the bridge over the Bès, and turn right.
(5) Cross the bridge. Pass the small road on your left, which you came by on the outward journey, and continue on the D900, heading East-South-East, for about 1 Km.
(1) Take the path on the left which climbs between low walls towards Marchastel and which you took on the outward journey (blue markings). Quickly reach the church square (S/E).