📌 (0h0min; 0kms) Zuriza (1.223m). Take the track that starts just below the campsite in a steep curve (GR11 sign), in the direction of the Petraficha ravine. On the left, the slopes of Quimboa; on the right, the Pico Ruzquia (2074m), the start of the elongated Sierra de Alano, reminiscent of the Dolomites. The ascent on the track to the Taxeras car park is gentle; we will pass a couple of riachuelos💧 and a source💧 in which you can get water.

📌 (0h30min; 2.8kms) Llano de Tacheras/Taxeras (1,283m). Just before the parking lot, on the left hand side, there is an ascending staircase. GR11 along the Collado de Petraficha (GR11 panel). We will continue along the GR11.1 variant, crossing the river through the car pass, and just after that, we will take a left onto a path (source💧 on the left, next to the river) that rises up, cutting the track several times until it reaches the Zucaca farms. From here we continue along the track until it ends (15′ from the farms; you pass a couple of riachuelos💧 something scarce).

📌 (1h15min; 4.6kms) End of the track (1.560m). At this point, right in front, on the other side of the river💧, There is a small free shelter (from Mazandur, 5-6 people, in good condition). The trail continues along the slopes of the Alano Mountains, skirting several dry streams, and crosses the Barranco de Mazandú And it continues to rise along its right edge. The ravine soon dries up and 1km further on, on the other bank, we find the last stream.💧 before the pass where you can get caught water💧 in late summer.

📌 (2h35min; 7.1kms) Cuello de Estribiella (2,000m). The trail descends without pause towards the Estribiella ravine, to the point that a ladder and some nails have been placed at the 1800m altitude to help us complete a stretch (without difficulty).

📌 (3h20min; 8.3kms) Barranco de Estribiella – Crossing to Peña Forca (1,635m). Here we can get started water💧. The path descends parallel to the river along the left bank, on comfortable terrain, following paths used by livestock until it enters the hayfield, where the path again rises steeply.

📌 (4h15min; 11.2 kms) Puente de Oza (1,125m). Several buildings rise next to the parking lot; following the road to the right, a hundred meters down we find the Oza free shelter (free, in good condition). We cross the bridge; to the left, next to the river💧, There is one source💧 And continuing along the road, a bar and a campsite. We will take a path to the right as soon as we pass the bridge (GR11 sign) and continue along a tree-lined zip line park. The signage initially coincides with the ascent to Castillo d’Acher (2390m) and with the variant of the Camino de Santiago (GR 65.3.3) that we will follow until the end of the stage. The path runs through a spectacular forest of pine and white fir, passing the Espata ravine (the Palanca de Espata bridge) and descend to the Puente d’Isil, a small walkway that leads to the road 2 km from the Oza bridge. We can leave the road or continue along the path to the abandoned camp of San Juan de Dios, where we will cross a walkway (Puente de lo Sacadero) to leave the road.

📌 (5h10min; 14.6 kms) Puen de lo Sacadero – Campamento San Juan de Dios (1,055m). Next to the road we find a forest shelter (free, regular). Again we can choose to follow the road, -it's not a bad idea, with good views over the ravine of the Hell's Mouth- or take the path that ascends along the right margin, the old Roman road Caesaraugusta-Beneharnum, until a defensive tower known as Castillo Viejo or Castiello Biello. After leaving the tower behind, the path descends among pines (take a left turn, steep slope) to rejoin the road. We follow it for a few meters until the intersection on the left that marks the way to the campsite of Bisasltico, near the Bridge of Santa Ana.

📌 (6h00min; 17.7 km) Cruze – Santa Ana Bridge (944m).