Guidebook with maps/step-by-step
0/ Departure point: church car park in Thollon-les-Mémises.
1/ Head towards the hamlet of "Chez les Vesins" and then "Lain".
2/ Continue on the path to "Creusaz".
3/ When you reach "Creusaz", take the path towards "Sur la Rasse".
4/ Continue along the path through the forest.
5/ At the fork in the road with the GR Balcon du Léman, take the path on the right towards "Sur les Prés".
6/ When you arrive at the "Chalets sur les Prés", leave the GR and take a path that passes above these chalets, where you will arrive on the "crête du Grand Mottay".
7/ Take the path on the left towards the "col de Pertuis".
8/ Once you have reached the "col de Pertuis", go back down towards "Thollon village" to join the itinerary for the ascent to "Lain" and then take the same path from the start to return to the church.