(S) From the refuge, head west, in the opposite direction to the previous day’s arrival, following the panoramic path and Route 11, which you’ll follow all day. Ignore the paths branching off to the right.
(1) At a junction you passed through the previous day, carry on straight ahead (south) and slightly downhill along the mountainside.
(2) At a junction, continue south-south-west along the panoramic path. Ford two streams. Then begin a climb, traversing west-north-west. Further on, follow tight switchbacks through a scree slope (very well signposted) to reach an unnamed pass (elevation 2610).
(3) Continue south and descend, alternating between traverses and switchbacks. Cross a stream and climb gently again. Pass the altitude of 260 m and descend to a junction. You can turn left here for a round trip to Lac de Saint-Martin (allow for an elevation gain of around 200 m to reach the lake).
(4) Turn right towards the Mario Bezzi Refuge and continue downhill.
(5) At the next junction, turn right, continuing downhill with the refuge visible further down. You’ll arrive at the Mario Bezzi Refuge (E).