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First of all, please have an IGN map or GPS with you before taking this trail. Indeed, this trail is made up of paths marked Red and Blue, then unmarked, then Yellow...
(S/E) Start from the Arcenant village hall car park, Rue de Beaune. Follow this street up to the village, turn left at the junction, then left into Chemin de la Source. Follow this quiet path alongside the Raccordon stream.
(1) Take the path on your right between the trees, marked Blue and Pink and called "Sentier Voituret". Be careful not to take the wrong path here, as there are many possible paths leading from this clearing to a small "clearing" where the Doua fountain is located.
(2) After about 500m, you'll climb up a path on your right (marked Blue and Pink), you'll arrive above the cliffs, continue to the Trou du Duc, still following the signs. The entrance to the Trou du Duc is not clearly visible; as you approach the cliffs, you'll see the small platform which, by lifting the plate, will allow you to descend into the Trou du Duc cave (optional). The hole is on your left, just before you leave the cliffs. The view is magnificent.
(3) Then follow the blue and pink path down into the valley to a crossroads.
(4) Leave the markings and take the left-hand path (where there's a cross).
The path then climbs a little for about 500m, follow the main path, you'll come to a junction - you should always be taking the main path (the one that goes off slightly to the left). Pass a bend to the left, then one to the right, and follow along the forest and a clearing.
(5) At the end of this clearing, turn right, then immediately after, at the crossroads where you'll find the GR®, take the left-hand path (be very careful here, don't follow the GR®). You then continue on the main path, taking neither the right nor the left-hand paths at the next junctions (look carefully on your map at this point for the right path). The Gallo-Roman site will be signposted after a while (approx. 1km).
(6) Follow the signs to the left. Take a break at this archaeological site.
(7) Then take the path at the bottom of the Gallo-Roman site on the right, and follow it in the direction of the Maquis, which is signposted at the beginning. Even if the Maquis is no longer signposted (damaged sign?), follow the path back down into the valley to the foot of the Maquis.
Then continue on the same path up the valley.
(8) At the top, take the first well-marked path on your left. At the next crossroads, several paths are indicated. Take the one on the right and follow it.
(9) At the next crossroads, turn left and you'll come to the viewpoint indicator. Follow this white path back to the village on Rue du Vieux Puits. At the end, turn right and then right again to reach the car park. (S/E)
Walker
Easy 
