Coming from St Disdier, head towards Agnières en Dévoluy (D937). After 4 to 5 km, turn right at the hairpin bend to go up to the hamlet of Le Grand Villard (D207).
Continue for about 1 km towards Truchière. At a hairpin bend, park near the small bridge (yellow sign).
(S/E) Start by climbing up a good path, following the bed of the Torrent des Pertusets, which is usually dry. The route is not very wooded at the start, then opens out onto pastures. Pass by a rustic hut marked as a pastoral hut on the map. Continue to reach a crossroads of paths.
(1) Continue climbing, turning left to enter the valley via a very obvious narrow passage. Climb up this valley, following a small, clearly visible trail.
Pass by a dry stone shelter at Baume Méanne. Continue on a fairly steady climb up the Vallon de Truchière until you reach the Col de Drouillet.
(2) Turn right below the ridge to reach the karstic cave below the summit of Les Prêtres.
(3) Continue the descent through the Vallon des Narittes. You will quickly find yourself on a good track and there are no notable difficulties apart from the stones that roll a little underfoot, but that's how it is in Dévoluy.
At the bottom of this valley, you will reach the crossroads you passed on the way up.
(1) Head south opposite, staying on the sharp limestone pavement as much as possible as the trees are quite thorny. Stay high up to avoid the forest. After 30 to 45 minutes, you will reach the top of a pasture where you can see the Camarguier hut below.
(4) As you pass, look for a spring near some metal hollowed-out tree trunks serving as drinking troughs. Descend the wide track to the yellow sign indicating "source de l'Adroit". Follow this path to the left of the track. Shortly afterwards, you will reach the edge of the woods.
(5) Stay on this path, which winds its way back to the car park where you started (S/E).

