To get to Grilly from Divonne-les-Bains, take the D15 towards Versonnex and turn left at the traffic lights in Grilly. Parking spaces on both sides of the road.
(S/E) Continue along this road on foot towards "Chavannes des Bois and Pont Bugnon", leaving the fountain on your left and following the road straight ahead. Further on, follow the road as it curves to the left and you’ll reach a fork in the road.
(1) Take the right-hand path. At the next fork, turn left.
(2) Cross the Versoix via the Pont Bugnon or Pont de Grilly. You will cross into Switzerland; continue straight on until you reach the next road.
(3) Take it on the right and turn right again onto the next path, the Chemin des Mouilles. You will come to a road.
(4) Continue straight ahead along the road, then, when it bends to the right, carry on straight ahead onto the Route de la Bourdonnière. Continue straight ahead for about a hundred metres and, at the junction with a track, continue along the road that branches off to the left. At the next junction, turn right to reach the hamlet of Le Château.
(5) Turn right onto the road, take the second path on the left, then the first path on the right, and you will come out onto a road.
(6) Take the road on the left for a few metres, then, at the crossroads, follow the road on the right (D15E) to cross the Versoix again and return to France. Continue along this road to the village of Sauverny.
(7) At the fountain, turn right onto Chemin du Moulin, towards “En Munet”. At the fork, continue left. This path branches off to the left further on.
(8) At the next fork, continue to the right and then, further on, turn left. Walk past a riding school and, after its car park, continue to the right to reach the first houses of the village of Grilly. Turn left to return to your vehicle (S/E).