Start from the car park at the church in Saint-Martin-du-Vivier.
(S/E) From the car park, cross the main road and take Impasse des Rosiers. After 50 m, turn right onto the path that leads to Rue des 2 Hameaux and follow it uphill on the left.
(1) Take Impasse du Coteau on the right after the level crossing. Continue along the path after the left-hand bend for a steep climb towards Mont Perreux.
(2) At the crossroads, almost at the plateau, continue on theGR® trail on the right. Continue straight ahead along the edge of the woods, leaving the path on the right that leads to Isneauville. At the crossroads where the road descends to the right towards the church of Fontaine-sous-Préaux, continue straight ahead until you reach the start of the Ruette aux Cailloux, which descends steeply to the Route d'Isneauville D47.
(3) Go down the road, pass under the railway bridge and continue to the small car park opposite the Source du Robec.
(4) At the end of the car park, take Chemin du Mont Roty on the left. After 150 m, turn left onto Bosc aux Moines. Continue along the grassy, wooded path, which climbs steeply. Ignore the paths on the right and left and keep heading north-east. When you see the high-voltage power line, follow it for 100 m to the right, then turn right again to follow the path under the trees, running along the edge of the forest.
(5) Cross Chemin du Mont Roty and follow it to the left (forest exit). Continue straight ahead on the plain, pass under the high-voltage line until you reach a four-way intersection (macadam).
(6) Take the grassy path on the right, ignore the fork further on the left, pass under the high-voltage line again and continue towards the Ferme de l'Essart.
(7) Continue along the road south towards Roncherolles. Pass the Bois Breton housing estate.
(8) At the top of the hill, turn left onto Chemin du Vallon. At Rue du Carouget, turn right, then left onto Chemin des Murets, which leads to Rue de l'Église.
(9) Turn right onto Rue de l'Église and continue straight ahead until you reach the roundabout, then take Allée des Bouilleurs opposite.
(10) At the start of Allée des Bouilleurs, continue straight ahead along Chemin de la Ronce. After a left-hand bend, the road descends to the school in Saint-Martin-du-Vivier.
(11) Just before the school, take the passage on the right that leads to Rue du Bouvier. Turn left after 200 m, then right onto Route de la Vallée and immediately right again towards the church (S/E).

