Anello di escursionismo di 91.76 km con partenza da Amorebieta. Il dislivello positivo è di 3926 m, con un'altitudine compresa tra 68 m e 600 m. Durata stimata: 32 h 50 min. Comune di partenza: Amorebieta (Euskadi, Espagne).
Questa escursione comprende 11 salite significative. Con un dislivello positivo totale di 2228 m su 26.74 km, con una pendenza media del 8.3%.
- Climb 1 (at km 7.82 km): +325 m over 3.47 km, average slope 9.4%
- Climb 2 (at km 12.03 km): +96 m over 881 m, average slope 10.9%
- Climb 3 (at km 24.88 km): +161 m over 2.57 km, average slope 6.3%
- Climb 4 (at km 31.65 km): +414 m over 4.02 km, average slope 10.3%
- Climb 5 (at km 37.87 km): +126 m over 1.81 km, average slope 7.0%
- Climb 6 (at km 47.11 km): +165 m over 2.11 km, average slope 7.8%
- Climb 7 (at km 49.97 km): +53 m over 912 m, average slope 5.8%
- Climb 8 (at km 55.05 km): +106 m over 1.55 km, average slope 6.9%
- Climb 9 (at km 64.18 km): +372 m over 4.67 km, average slope 8.0%
- Climb 10 (at km 72.51 km): +228 m over 2.51 km, average slope 9.1%
- Climb 11 (at km 86.56 km): +182 m over 2.24 km, average slope 8.1%
