The start is at the end of the car park at the Saint Honoré 1500 resort, about 45 km south of Grenoble via the Route Napoléon.
(S/E) Follow the path down into the meadow below. A group of yellow signs, visible from the start, indicate, among other things, the direction of Tabor and Piquet de Nantes, which we follow.
After a fairly steep climb of about 200 metres, you will arrive at a path opposite a water tank. Follow this path to the right. After a hairpin bend and about 500 metres from the start, you will arrive at a place called "Les Alisiers".
(1) There are two directions: Piquet de Nantes to the right and Tabor straight ahead. We will turn right and return to this same point via the other path on the descent from Tabor.
The path is very wide and gently sloping in the first part, winding its way up to the ridge. As on the rest of the route, there are regular signs, yellow markings and cairns: it is virtually impossible to go wrong. The last part of the climb is steeper and a little slippery, but after about two hours we arrive at a place called "Chaurousse" at an altitude of about 2,160 metres (not 2,200 metres as indicated on the sign).
(2) On the right, towards the south, is the path that takes us to the Piquet de Nantes in about 15 minutes (a cross is visible at the summit).
(3) After admiring the view, we head back towards Chaurousse and take the path north, which will take us to the Tabor, more or less following the ridge. The path is fairly well marked and has numerous yellow markings. We rejoin the path we will take on the descent about 50 metres before the summit of the Tabor.
(4) After stopping at the summit, we descend the trail northwards, following the ridge to a small pass.
(5) The path on the left is less visible but continues downhill for about 20 metres before a hairpin bend. The rest is fairly straightforward, with a clearly visible path marked with yellow markings and cairns. After passing through a hollow ending in a few metres between two rocks where you will need to use your hands, follow a stream northwards.
(6) The stream is first on your right, then on your left, without staying in its bed. It then heads left just before a small hillock and quickly joins the sign near the small Charlet lake, which you can visit but is not particularly interesting.
(7) A few metres after the sign, the car park is visible and the path leads us in that direction.
(8) Crossing the Jonche.
(1) You will arrive at a place called "Les Alisiers", where you can descend via the same path you took on the way up or take a shortcut on the right that will quickly take you to the reservoir and then to the car park (S/E).
