Park at the exit of Les Granges in the direction of Col du Joly, under a plum tree at the side of the road. Be careful not to encroach on the road.
(S/E) Take the track that runs alongside the Alpettaz stream towards the south-east.
(1) At the water intake, take the small path on the left, which begins a steeper climb to the intersection towards La Montaz.
(2) Take the path to the left (the path continuing straight ahead, which is not shown on the IGN map, leads to the bottom of the Montaz hills).
(3) When you reach the lower Commanderie chalet, turn left and continue straight on to the upper Commanderie. You will come across lots of blueberries if it is the right season (August).
(4) At the last chalet, turn right towards the pass. On the way up, you will see magnificent cotton grass in the bog and you may even come across some common frogs. When you reach the top of the pass, you will discover the blue and white Lac de la Girotte with Mont Blanc in the background.
(5) Take the same path in reverse to return to the car park (S/E).