The starting car park is situated at the entrance to the village of Chapias, on the left as you head uphill.
(S/E) From the car park, head up the road to the left and walk through Chapias. Turn right at the first junction, walk past the Chapias Tower, and ignore a road on the left. Leave the road and take a path on the right alongside a vineyard. After 300 m, you will see the Unal house on the left.
(1) After the house, take a path on the left, which can be identified by traces of old white-and-yellow markings. A little further on, just before a section over rocks, turn right. Pass by the Valla pond and take the road on the right.
At the three-way junction, turn right. On the next section, the IGN map is out of date; rather than a path, you’ll find yourself on a dirt track whose continuation isn’t shown. (See the satellite photo or the OpenStreetMap instead).
(2) When this track turns left, carry on straight ahead along a path. Do not take the parallel track, which ends in a dead end at a viewpoint. You can make a round trip to this viewpoint and then return to the path, which descends very steeply to the tarmac road. Take the road on the right and follow it to a left-hand bend in front of a small hut.
(3) Go round the hut and turn right onto a white-and-yellow signposted route. Cross the stream via the footbridge, slightly downstream of the route shown on the map. Continue uphill along the path until you reach the stream again.
(4) If there isn’t too much water, cross the stream and carry on straight ahead along the signposted path , ignoring the GPS route shown here, which you’ll rejoin a little further on.
However, when there is a lot of water, the waterfall further downstream is magnificent but crossing it can be very difficult. In this case, go back a little way, climb over the rocks and make your way up the left bank through the undergrowth. Go round the confluence of the two streams and rejoin the path a little further up. This is because the water emerges from a resurgence located right at this confluence. Upstream, there is no water at all.
Further along the path, before reaching the top, look out for a cave on the left bank of the ravine. You’ll come to a viewpoint on the edge of the plateau.
(5) Take the path on the right. Pass the road leading to La Mare aux Anges on your right.
(6) At the junction with the D315, turn right to reach the car park (S/E).