From Hondarribia, follow signs for "Jaizkibel-Guadalupe".
Just after the Guadalupe chapel, at the crossroads, take the small road to the right and park in the large car park on your left, 50m after the crossroads. Between this parking area and the chapel, a large green space with picnic tables awaits you.
(S/E) Head North/North-East (opposite the entrance to the car park) and continue along the small asphalt road. At the next crossroads (4 roads), turn left down the road. You'll find a large house on the right-hand side of the road, go straight on for about 250m.
(1) At the fork in the road, take the dirt track on your left, which descends into the forest. After approx. 1300m, you'll find a path on your left which descends a little steeply. Go down to the small concrete building.
(2) At the level of the small building, go left up the rock steps to find a dirt track, the GR®121, which runs along the ocean coast from the Phare du Figuier to San Sebastian. Follow this path up and down along the Atlantic coast. After about 800 m, you'll come to a small cove that's very popular with Spaniards in summer.
(3) At the next intersection, turn right onto the path leading down to the cove. Cross the stream and take the path on your right, which climbs up the other side of the cove. Continue along this path for about 2km, ignoring the numerous tracks on your left. Along the way, you're likely to come across pottoks, sheep and cows (don't go near these rather wild ruminants) and, on a clear day with a little breeze, you'll catch a glimpse of sailing boats on the ocean.
(4) At a fork in the road (when the path turns away from the ocean), leave the right-hand path leading down to the cove (the GR®121 continues), go straight on into the forest and take the wide path running alongside it. Without leaving this path, come to a large parking area and join the asphalt road.
(5) Turn left onto the asphalt road and keep to the left to keep a clear view of the vehicles on this road. Be careful with children, you'll be walking on the edge of the road, so it's advisable to walk on the grass as much as possible.
(E) After about 1200m, you'll come to the last crossroads (buildings). Keep left to reach the car park (S/E).