Start from the car park at Anse Couleuvre, at the end of the D10 road, north of the village of Prêcheur.
From start to finish, there is only one path, which is very well marked (the few trails that branch off are indicated in the description below). Here and there, small signs indicate the direction of Le Prêcheur or Grand'Rivière.
(S) Cross the Anse Couleuvre river. Leave the beach path on your left and take the path that climbs north to a promontory above the sea.
(1) At the fork, ignore the path on the left, which descends to Anse Lévrier, and turn right at a sharp angle.
(2) A few hundred metres further on, at the next fork, ignore the path on the left, which descends to Anse à Voile, and turn right. The path winds its way up to the foot of Morne à Lianes.
(3) The path descends in wide switchbacks to reach the Ravine des Galets.
(4) Head back up to the north-west to reach the top of a promontory above the sea (elevation 150), where you'll get a bird's-eye view of Anse des Galets.
(5) The trail turns northeast and then southeast. It climbs steadily and passes directly below a nameless hill (elevation 294). Continuing southeast, the trail descends, passes under a small tunnel and ends at the Trois Bras River. You are now about halfway through the hike.
(6) After crossing the streams, the trail climbs steeply to the Petit Morne (359 m), the highest point of the hike.
(7) The trail descends to the Écrevisses river via switchbacks that are just as steep as those on the way up.
(8) Climb back up for the last serious ascent. The trail starts with a few switchbacks and then heads northeast. Begin the descent below a nameless hill (elevation 326).
(9) The trail makes a hairpin turn. It heads south and continues downhill to exit the forest.
(10) Cross Fond Moulin in the middle of a more open landscape. Cross a small ravine (Ravine Morne Cabrit) and continue through the forest. Cross the small ravine that descends to Anse Morne Rouge and reach the small port of Grand'Rivière (E).
