Nothing could be easier than following the path to the spring:
(S/E) The walk starts under a large metal archway marked "Chemin de l'Infernet". This walk is a tiny part ofthe GR®2013 trail. Follow the red and yellow markings.
Following the river on the left bank, you will come to some duckboards overlooking the river for a short distance
(1) As soon as you arrive opposite the ochre-red rocks, worthy of the greatest Westerns, the walk continues on the right.
(2) You will pass a large natural pool with a waterfall. The source is 50 metres upstream, emerging from a small cave.
(3) The return journey follows the same route back to the starting point (S/E).
nice walk! It's like being in cowboy country!