(S/E) At the tram terminus "A- La Poyat", head south-west towards Rue de l'Abbaye. 400m further on, at the four-way crossroads, cross over to the other side, where you will see a signpost indicating the Tour Sans Venin at 4.10km. Head southwest up this steep street in La Poya. At the end of the cul-de-sac, pass through a half-barrier and the path begins to climb steeply, before levelling out a few dozen metres further on and widening.
Yellow and green markings
(1) The Coup de Sabre takes you between the mountain and a gigantic section separated by a single line. Emerging from this geological curiosity, the path continues to climb and turns naturally towards the south. A small chaotic section is easy to cross and you will immediately reach a clearly marked fork with two old small signposts opposite each other marked "ball trap".
(2) Take the right fork.
(3) Cross a path higher up (this will be the return route, so take note of this junction) and continue opposite on the path climbing westwards.
(4) Cross another forest path to rejoin the trail that heads south. Ignore the poorly marked trail climbing to the right. Follow the markings on this main trail without difficulty.
(5) When you reach Ferme Froussard (altitude 480m), follow the sign for "Tour Sans Venin 2.5 km" towards the south-west along the forest track. After about 300m, take a shortcut that climbs steeply to the left, towards the south-east. This shortcut intersects the forest path at "la Croisée" (signposted La Tour Sans Venin at 2.08km). Finally, rejoin the forest path in the open fields with a view of Grenoble until you pass a forest barrier.
(6) At this crossroads, head south and pass under the high-voltage power line. The path is called Chemin du Sabot. At the next forest barrier, admire the fields below on the left (many horses) and a cave that is apparently not open to visitors. Continue along the path.
(7) When you reach the Tour Sans Venin, don't hesitate to walk around it, as there are many viewpoints and places to stop for a break.
The descent is the same as the ascent to Ferme Froussard. There are no particular difficulties with orientation.
No markings.
(5) Once back at the Froussard farm, turn right onto the wide path leading down to a Y-shaped crossroads.
(8) Turn left heading due north to reach Pré Faure, a forest car park that is quite busy at weekends and on sunny days.
Follow the path north-west to the Ferme Raymond crossroads.
(9) Go down the tarmac road to a hairpin bend on the right. At the bend, follow the forest path to the left heading north, then north-west.
Avoid the few paths that appear to be shortcuts to Coup de Sabre on your right. Return to the crossroads at the top of the hill.
Yellow and green markings
(3) Turn right towards the east, taking the wide downhill path, pass Coup de Sabre again and exit via the tarmac road you took on the way up to the tram terminus (S/E).
