AB-9

On the NA 140, at the exit of the village of Abaurrea Alta, in the direction of Ochagavía/Otsagabia, take the track on the left called Erdiko Bidea and reach a crossroads that is followed to the left, after passing an Aska. From here continue 500 meters and leave the car in a parking area on the right. Set off in a Southerly direction along a path fenced for livestock. Following the path, in 5 minutes you reach a three-way fork next to some bordas; at it take the path that leads in a Westerly direction until reaching a stream and, after crossing it, climb to the left up to a limestone crag, which must be followed until you find the entrance flush with the wall.