Departure from the Raffort car park at the end of the tarmac road.
(S/E) Take the wide path that climbs up through the forest, which is theGRP® of the Massif des Bauges, marked in red and yellow. Continue to the three-way crossroads.
(1) Leave theGRP® and take the path furthest to the right for a steeper climb.
You will arrive at the Alpettaz plateau at a crossroads with several paths.
(2) Continue straight ahead to take the ridge trail that quickly leads to the Fort de la Batterie.
(3) Take the same route back to the Raffort car park (S/E).