Start from the small car park on the edge of the Route Forestière des Dix-Sept Kilomètres, a road accessible by car or van.
(S/E) Follow the forest road uphill until you reach a three-way junction.
(1) After this short warm-up, turn right onto the Chemin Forestier de la Casevaille; the climb gets steeper. Continue along the Piste Verte de l’Écureuil.
At the car park (with the electricity substation on your right), leave the tarmac and turn left, continuing to follow the Piste Verte de l’Écureuil along the edge of the forest. Further on, leave the track to enter the undergrowth on the right and continue along the path to the Tête de Grouvelin viewpoint/orientation table.
(2) Head down to the left along the Piste Rouge de l’Aigle towards La Chaume Francis. Cross a road (Route Forestière des Dix-Sept Kilomètres) and continue straight ahead down a fairly steep grassy slope. You’ll reach the base of the Tête de Grouvelin chairlift.
(3) Turn left, follow the edge of the forest on your right, then turn right onto the path to enter the woodland.
(4) At the bend, follow the path into the forest on the right and continue uphill along the red trail to rejoin the forest road; the finish line is on the right (S/E).
