Park in the car park of the church of Sainte-Engrâce or, if this is not possible, a few hundred metres further down on the right.
(S/E) Follow the paved road for about 150 metres, take the road on the right and continue to the bridge.
(1) Turn right again, crossing the bridge over the stream. Continue along this road, which begins to climb, pass under the high-voltage line, and 250m later, turn right after the place called Xilhankoa to rejoin the PR®®.
(2) From here on, you are in the gorges, with a single path crossing the stream bed numerous times. As you climb, you will be surprised to find signs indicating a source of drinking water just a few metres from the path! There is even a cup for tasting the pure water!
(3) The yellow markings are more or less visible... You need to pay attention to follow the right track, even at the bottom of the canyon, as the stream must often change the landscape. Reach the Molerse cave, which is easily recognisable by its size.
(4) Continue and finish the climb to the waterfall at the top of the gorges. You will reach the plateau just after this.
(5) A sign indicates the fork to the left to complete the loop. You will reach a new plateau with the first cayolar (sheepfold) supplied from a Spanish road. A metal tower stands out in this natural landscape.
(6) Join the path with two markings, one French (yellow) and one Spanish (red and blue). Begin climbing the hills to rejoin the road, which is paved in places.
(7) Follow this road to the left, crossing the stunning karst landscape.
(8) The marked trail turns left, reaching a new plateau marked with signs that lead us back to the return route, a long descent to Sainte-Engrâce. The descent is well marked at the beginning, but you will have to improvise after that. You will come to a trail junction after the place called Idiartolha.
(9) Leave the path by taking the trail on the left and descend into the forest. The trail is very visible! Follow the GPS track carefully, as many trails created by logging have disrupted the map of the area. Reach the place called Erdiko Sorhoa.
(10) A few metres from the path, you will see a clearly visible crevice. Continue downhill, rejoining the tarmac road for a short while, then take the path again at the hairpin bend.
(11) Continue down this forest trail to the hamlet of Ungüratüra and turn right onto the road parallel to the high-voltage power line. At the next crossroads, turn left, continue for 150 metres and leave the road.
(12) Return to the trail marked "Retour vers Sainte-Engrâce" on the right. Follow the bell tower of the Sainte-Engrâce church to return to the first crossroads at the bridge.
(1) Retrace your steps to return to the starting point (S/E).
