Anello di escursionismo di 203.63 km con partenza da Idiazabal. Il dislivello positivo è di 5150 m, con un'altitudine compresa tra 0 m e 1138 m. Durata stimata: 66 h 40 min. Comune di partenza: Idiazabal (Euskadi, Espagne).
Questa escursione comprende 18 salite significative. Con un dislivello positivo totale di 3106 m su 46.27 km, con una pendenza media del 6.7%.
- Climb 1 (at km 572 m): +53 m over 300 m, average slope 17.7%
- Climb 2 (at km 3.07 km): +32 m over 563 m, average slope 5.7%
- Climb 3 (at km 8.40 km): +93 m over 1.79 km, average slope 5.2%
- Climb 4 (at km 17.72 km): +766 m over 5.83 km, average slope 13.2%
- Climb 5 (at km 30.59 km): +34 m over 844 m, average slope 4.0%
- Climb 6 (at km 37.63 km): +38 m over 762 m, average slope 5.0%
- Climb 7 (at km 47.45 km): +43 m over 2.01 km, average slope 2.1%
- Climb 8 (at km 63.45 km): +36 m over 1.68 km, average slope 2.1%
- Climb 9 (at km 72.69 km): +175 m over 2.01 km, average slope 8.7%
- Climb 10 (at km 83.53 km): +86 m over 1.90 km, average slope 4.5%
- Climb 11 (at km 91.75 km): +216 m over 2.55 km, average slope 8.5%
- Climb 12 (at km 99.11 km): +94 m over 1.24 km, average slope 7.6%
- Climb 13 (at km 102.69 km): +186 m over 2.01 km, average slope 9.3%
- Climb 14 (at km 109.38 km): +41 m over 757 m, average slope 5.4%
- Climb 15 (at km 129.11 km): +194 m over 11.25 km, average slope 1.7%
- Climb 16 (at km 220.33 km): +166 m over 1.57 km, average slope 10.6%
- Climb 17 (at km 268.12 km): +386 m over 4.99 km, average slope 7.7%
- Climb 18 (at km 281.60 km): +467 m over 4.22 km, average slope 11.1%
