Parking: Rue de l'Abreuvoir, in Samoreau, opposite the pond.
(S) Head north through the passage opposite the pond. Near the campsite entrance, take the porch on the right to cross the paved square towards the church. See the Grange aux Dîmes on the right (*). At the end, open the gate (and close it again) to exit and turn left in front of the church.
After the S-bend following the church, turn right onto Rue Grande (follow the PR®, yellow markings). Cross the railway line via the bridge. Continue along Rue Grande, following the PR® markings and the GR®2 markings (red and white). At the end, turn right into Rue de Montmélian, then left into Rue du Rocher. Just after the crossroads with Rue des Cerisiers on your left, look for the passage on the right between a garage and a house.
(1) Take the narrow passage, then follow the GR®2 markings south on a path. At the next crossroads, turn left and continue to the high-voltage power lines.
(2) Follow the signs to the left. Please note: the path enters the woods to avoid the high-voltage power lines before turning right to cross them. Follow the GR® signs to the T-junction near the wall: GR® to the left and unmarked path to the right.
(3) Follow the GR® on the left until you reach the perpendicular lane that leads to the Pressoirs du Roi (on the right, but closed by a gate at the wall).
(4) Allée des Pressoirs du Roi *: take the lane on the left and, towards the bottom of the descent, find a path on the right, before the road. Follow the path on the right. Pass above the waste collection centre and continue to the car park near the D39.
(5) Continue straight ahead. Cross the D39 with the GR® which will turn right, then left, and arrive at the crossroads where the GR® turns right, while the Yellow PR® continues straight ahead.
(6) Turn right with the GR®, cross the street "Chemin de Samois" and continue straight ahead on the Chemin des Archers. At the next crossroads, make a half-turn to the right onto the Chemin des Poiriers. At the end of the left-hand bend, take the small passage on the left that descends into the "Trou Canard" (or Square des Poiriers).
(7) Trou Canard geological site (*). Go down the path on the left to see the cliff and its sandstone joints, then turn right after the benches to see the small eddies of the Ru des Aulnettes and its tuff deposits*. Join the road (Avenue des Acacias) and go up it on the right until you reach Rue Bellevue on the left.
(8) Walk up Bellevue towards Les Fours du Roy, to No. 29 and its beautiful wrought iron gate, which offers a stunning panoramic view of the Seine.
(9) Leave the street and take the path on the right, which will take you back to the starting point (5) at the car park.
(5) Turn left onto the GR® marked trail to the left of the barrier. Follow the markings until you reach point (4).
(4) Continue straight ahead on the marked trail from the outward journey until you reach the point (3).
(3) Leave the GR® and continue straight ahead. After a double right-hand bend, look for thesecond passage on the right leading to the cliff face and cave.
(10) Go back and take the previous path again. 80 metres further on, at the crossroads, take the path on the right that climbs up some beautiful rocks. At the end of the left-hand bend, you will come to a crossroads. Turn left to begin the descent. Further down, there is another crossroads near the high-voltage power lines. Turn left onto the path in front of the castle wall and follow it to the right to arrive at the entrance gate to Montmélian Castle.
(11) Take the path on the left, between the property wall and the high-voltage power lines. When you reach the road, follow it to the left. Go under the railway line. Go straight ahead at the crossroads and you will arrive at the bend near the Seine.
(12) Leave the road and take the path to the right of the car park to reach the banks of the Seine. Walk along the river on your left, then a pond on your right. At the end of the pond, continue with a field on your right. At the end of the field, leave the banks of the Seine and follow the path on the right at the edge of the trees to reach the large Samoreau pond.
(13) Take the path that climbs to the left to go around the pond (*) on the left. Walk along the pond on your right until you reach the car park where you started (S/E).
