Start: Take the N121B from Dantcharia towards Col d'Otxondo.
At the pass, take the road on the left towards Gorramendi, which crosses a Canadian barrier. Reach the starting point at the orientation table on the right-hand side of the road.
(S/E) Take the trail up to the Alto Aizpitza antennae
Note: There's no need to follow the trail - it's just as easy to go straight up.
(1) Go right around the installations. Go downhill a little to climb up to Gorramendi.
Pass a number of cromlechs marked by a post. Go straight up the grassy slope. Pass fenced-in areas on the right.
Reach the summit of Gorramendi, marked by a small antenna.
(2) Continue North-East. You'll need to head further east to get back down to the pass separating the two summits.
Go straight up to Otanarte, where you'll find a large antenna and a building.
(3) Continue Eastwards. Descend almost to the level of the road.
Go straight up, avoiding a loop in the road. Reach the summit of Gorramakil.
(4) Go back down to the road and take it to the right to return to the car park where you started (S/E).