From the village of Larceveau, take the D918 towards Mauléon-Licharre. After 4.3 km (Bunus town hall), turn left onto the road that leads to the church district, the starting point of the hike. Park in the car park just below the church.
(S/E) Head north, leaving the fronton on your right, and follow a small road that branches off to the left between the houses. The road starts off gently sloping, then climbs steeply. Continue to the end of the tarmac.
(1) Continue along a track lined with dense vegetation.
(2) At a fork in an open area, follow the path on the left that heads up the mountainside. Walk north for a long time (generally) until you reach the next track.
(3) Follow the track to the right and uphill. This will take you to a wide grassy ridge.
(4) Continue south, then south-east to reach the summit of Othegane.
(5) Descend on the other side, following a track that first descends to an unnamed pass.
(6) Climb back up in a south-easterly direction and pass close to the summit of Hegiharitz. Continue more or less flat in a south-south-easterly direction until you reach a crossroads of tracks at the foot of Pentzezabala.
(7) Descend by taking the track on the right, which heads south. Turn right.
(8) Ignore a track coming from the left and continue downhill on a damaged tarmac road with several successive bends. Stay on the road, leaving the place called Errekaldea on your right, and you will come to a T-junction at a place called Aroztiega.
(9) Turn right, ignore another road on the right and head towards the church in Bunus (S/E).