Park your car in the car park along the GI 3454 road.
(S/E) Follow theGR®®121which starts on the right.
(1) Leave the path on the right and continue straight ahead, keeping south.
(2) Leave theGR®®121and look for an existing trail to climb up on the left, directly towards the ridge.
(3) Continue along the ridge path on the left, alongside a fence.
(4) Turn right onto the path to tackle the first steep section where you will need to use your hands: follow the red markings. Reach Erroilbide.
(5) Continue along the ridge to reach the foot of Txurrumurru
(6) Climb a slab with steps carved into the rock, about 15 metres high, following the red markings. Continue to the summit of Txurrumurru, then towards Irumugarrieta
(7) Continue along the path, leaving the path leading to Putzuetako on your left, and after about 20 metres, turn left to head north. Follow the path, making a first circular to the right, then another circular to the left, and continue downhill through the woods.
(8) Keep left at the fork, keep right at the three-way junction that follows, then turn left again and return to the car park where you started (S/E).
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