The trail starts at the Prarion cable car station near Lac des Chavants in Les Houches. Proceed to the small carpark on the side of the ticket office and take the trail heading in a western direction uphill. You will soon reach a larger carpark with a dirt track on its northern side which you will follow up hill till it crosses the Chemin du Tremble. Continue west and up till you reach the next paved road the Route des Aillouds. On this crossing there is a small carpark and a road sign for Charousse. Follow this paved road until you reach the junction with the Chemin des Creuses. Follow this path until you reach a trail marker indicating Charousse. Follow this trail until you reach the pastures and chalets at Charousse. Follow the trail passing by the chalets and the trail will enter the forest. You will see a trail marker at a small bridge over a small stream indicating Col de la Forclaz and Le Prarion. Take this trail which continues in a north-western direction. Keep following the trail markers for Prarion until you reach the Col de la Forclaz. The Col de la Forclaz is a junction where multiple trails and larger roads come together. Look for the trail marker indicating Le Prarion which will take you in an easterly direction as you start your climb up the crest towards the Prarion summit. At Le Prarion you will see an orientation table with nice views on both sides of the crest. Start your descend on the southern side of Le Prarion and you will reach a trail marker. Follow the trail heading towards Hotel du Prarion and Telecabine des Houches - Le Prarion. The Hotel Le Prarion cannot be missed. From there continue heading south towards the Col de Voza. This is a wide 4x4 track. Follow the track as it takes a sharp turn passing by the Col de Voza and the Tramway du Mont Blanc train station. Stay on the 4x4 track as it heads north towards two restaurants: Le Horse Pistes and Le Fre'mi. From there continue in an easterly direction and stay on the left side of the ski piste. The trail will enter the forest and end up at the lovely Vieuilles Luges restaurants perched on a little hill. Head south from there and follow the 4x4 track as it curves to the east and downhill towards Maison Neuve. You will find yourself on paved roads with little trails providing short cuts between the hairpin bends. Continue on until you reach the Route des Aillouds and then follow the road in a north-western direction until you hit meet the trail veering off to the east and downhill to Le Fouilly. The last segment will be a wood staircase until you reach the main road Route de Bellevue. Turn left and head in a north-western direction until you come back to the Prarion cable car station.