Park in the car park at the bottom of the village of Rosans on the D25.
(S/E) Walk back up towards the village and turn right to go around the church. Then turn left, then right and head north to reach the start of the Chemin du Facteur.
(1) Follow this path straight ahead to the Baumelle forest road, which you will reach at an altitude of 970 metres.
(2) Cross over and continue on the path opposite. Cross the forest road twice and continue to an altitude of approximately 1100 metres, where the path begins to descend.
(3) Leave Chemin du Facteur and turn right onto a good track running along the edge of the forest. Reach an elevation of 1214 metres, then, after passing a small rocky outcrop, descend into the woods, still following the edge of the forest. You will then find a marked trail.
(4) Take it to the right and continue south to reach Serre du Suquet.
(5) Continue in the same direction and you will soon reach the Baumelle forest road.
(6) Turn left onto this road and follow the large bend to join theGR®91(marked in white and red). Turn left onto theGR® and follow it to the Col de l'Archimbaou.
(7) Turn right, go through the forest barrier and follow the track south for about 500 metres.
(8) Take the path through the woods along the Serre de l'Aigle. You will come to a forest track at a bend; follow it to the right until the next bend. Here you will find a signpost for Rosans / Serre de l'Aigle.
(9) Leave the track and take the yellow marked trail. You will come to a fork.
(10) Be careful here: change to the original marked route shown on the map. Follow the new markings to the right along a fence.
(11) End of the new route. Turn right to follow the track through the marl and then the tarmac road to reach the car park (S/E).
... We retraced our steps to the first forest road crossing (in the direction of return) and followed it to point 6, where we saw the beautiful trail descending from Serre du Suquet (5).