Park in the car park at the end of the D38 road from Ustou.
(S/E) Take the path, which is the GRT59, on the left, then after a right-hand bend, climb gently along the ledge in the forest. Reach the first landmark on the climb, the footbridge at an altitude of 1158m.
(1) Continue straight ahead and you will soon reach the right bank of the Ruisseau des Cors stream. Reach the stream at the footbridge at an altitude of 1161m.
(2) Cross it to discover the Cirque de Cagateille.
Continue left towards the forest. Follow the left bank of the Turguilla stream.
It is when you enter the forest that things start to get serious. The slope becomes steeper and there are a series of hairpin bends. After a few steps, you will reach an intersection.
(3) Continue to the right into the forest, still on the GR®. When you leave the forest, the slope is very steep and your destination is still invisible. Reach the foot of a rocky outcrop. Handrails help you cross it without too much difficulty. You will come to an intersection before the Étang de la Hillette.
(4) Descend on the right down a passage a few metres high using the handrail, leaving theGR® trail on the left (put away your walking sticks if you have them, as they are of no use on this section).
Then follow the path on the left above the Hillette stream to reach the pond's spillway.
Continue along the left side of the pond.
(5) Pass the hut and continue along the grassy tracks to go around the pond, passing over some slightly slippery rock faces (be careful, it can be slippery).
Then cross the peninsula and the small arm of the pond via a ford to reach a marked trail above.
Turn right to return to the ascent path, climb back up the tricky passage you descended on the way down, then
descend the passage you climbed on the way up.
(4) Return via the same route as on the way up to reach the car park (S/E).



