Park in the car park on the SS125 road between Dorgali and Baunei, at the Genna Silana or Ghenna 'e Silana pass, on the north side of the road maintenance building.
(S/E) Leave the car park to the north. The trail starts on the left and above a paved path that descends towards the fountain, which you should not take. The well-marked trail descends in the open (panoramic view of the valley), through a recently reforested area, to a sign indicating Gorropu.
(1) Continue downhill, avoiding the stray paths created by livestock, especially those that descend steeply to the right. The forest becomes increasingly dense. You will reach the Costa 'e Silana sign.
(2) Pass a hut and descend into the forest. At the edge of the forest, the path begins to climb through scree. At the end of the climb, you will find a cave and a rocky peak.
(3) Follow the path, which now descends through the scree. Steps have been built on the steepest section. The path enters the forest again. You will then come to a hut.
(4) From here, begin a gentle climb to reach the edge of the forest and the entrance to the gorge. There is a cave here.
(5) Continue on to reach the Gorropu sign. Turn left and head towards the kiosk.
(6) At the kiosk, buy your entrance ticket and continue into the gorges. Do not rely on your GPS, as it will not be able to pick up satellite signals at the bottom of the canyon. Green dots mark the route. At the yellow dot, you will have passed the most spectacular part and will be entering a more technical area. Continue to squeeze between the boulders, which you will need to climb over to progress. You will then reach the point where the canyon is no longer passable without safety equipment.
(7) Return to the kiosk via the same route.
(6) Ignore the ascending path that leads to Sa Barva at the Campo Base 4x4 stop and continue downstream, avoiding the river pools. Look for a flag in the riverbed and head towards it, as it marks a source of drinking water.
(8) Return to the Gorropu sign and take the path on the left to reach the cave.
(5) Take the same path you took on the way there and return to the original crossroads.
(1) Turn left towards the Esilai Fountain and the picnic area. From the fountain, follow the path back to the paved walkway and then to the car park where you started (S/E).