Anello di escursionismo di 94.06 km con partenza da Ataun. Il dislivello positivo è di 5092 m, con un'altitudine compresa tra 169 m e 1230 m. Durata stimata: 35 h 50 min. Comune di partenza: Ataun (Navarra / Nafarroa, Espagne).
Questa escursione comprende 16 salite significative. Con un dislivello positivo totale di 3551 m su 28.32 km, con una pendenza media del 12.5%.
- Climb 1 (at km 4.23 km): +220 m over 1.71 km, average slope 12.8%
- Climb 2 (at km 11.14 km): +216 m over 2.10 km, average slope 10.3%
- Climb 3 (at km 13.56 km): +48 m over 323 m, average slope 14.8%
- Climb 4 (at km 19.91 km): +548 m over 3.71 km, average slope 14.8%
- Climb 5 (at km 27.78 km): +55 m over 569 m, average slope 9.7%
- Climb 6 (at km 31.28 km): +163 m over 1.09 km, average slope 14.9%
- Climb 7 (at km 37.72 km): +380 m over 3.49 km, average slope 10.9%
- Climb 8 (at km 41.27 km): +57 m over 717 m, average slope 8.0%
- Climb 9 (at km 45.69 km): +177 m over 1.40 km, average slope 12.7%
- Climb 10 (at km 50.32 km): +43 m over 932 m, average slope 4.6%
- Climb 11 (at km 61.14 km): +451 m over 3.89 km, average slope 11.6%
- Climb 12 (at km 66.19 km): +398 m over 3.11 km, average slope 12.8%
- Climb 13 (at km 69.84 km): +207 m over 1.03 km, average slope 20.1%
- Climb 14 (at km 72.22 km): +69 m over 474 m, average slope 14.5%
- Climb 15 (at km 77.28 km): +57 m over 546 m, average slope 10.4%
- Climb 16 (at km 86.71 km): +462 m over 3.23 km, average slope 14.3%
