Leave your vehicle at the Col de Saint-Eustache car park, on the edge of the D420.
Yellow markings clearly and regularly indicate the route to follow along the entire trail.
(S/E) The trailhead is on the eastern side of the pass (on the left when heading towards Petreto/Aullène). After a stretch through scrubland, the trail climbs gradually between the rocks, heading east then north-east.
(1) Leave the pretty Verruga fountain on your right and continue straight ahead (north).
(2) Below Punta di a Tacculaja, on a right-hand bend, ignore the small path leading off to the left and continue on the main trail that goes around the peak. Reach the ridge and follow it to the left (north-east).
(3) Passing under Poggio Grosso (1386 m), there is a beautiful view to the south over the valley and the villages of Aullène and Zérubia. Continue along the ridge towards the north-east.
(4) The pass at Punta Sambucu is the highest point of the route (1412 m). Continue north, leaving the ridge and passing Punta di i Cavaletti on your right.
(5) Continue north and rejoin the ridge.
(6) Begin the long, gradual descent towards Col de la Vaccia (north-east). Near the pass, find a perpendicular path.
Or, to avoid having to climb back up this final descent, do not descend to the pass but turn back.
(7) Turn back at the pass and climb back up towards the ridge (south-west).
(6) Leave the trail that branches off to the right and continue straight ahead to pass under Punta di i Cavalletti.
(5). Continue south-west and pass Punta Sambucu again, Poggio Grosso, and under Punta di a Tacculaja.
(2) Continue southwest, pass the Verruga fountain and return to the Col de Saint-Eustache (S/E).