Circuito de senderismo de 121.39 km desde Sotres. El desnivel positivo es de 6885 m, con una altitud entre 240 m y 1583 m. Duración estimada: 49 h 40 min. Municipio de salida: Sotres (Cantabria, Espagne).
Esta ruta incluye 14 subidas significativas. Con un desnivel acumulado de 4402 m a lo largo de 52.01 km, con una pendiente media del 8.5%.
- Climb 1 (at km 2.15 km): +132 m over 1.20 km, average slope 11.0%
- Climb 2 (at km 3.88 km): +60 m over 813 m, average slope 7.4%
- Climb 3 (at km 19.57 km): +451 m over 2.41 km, average slope 18.7%
- Climb 4 (at km 23.69 km): +71 m over 474 m, average slope 15.0%
- Climb 5 (at km 39.39 km): +335 m over 2.75 km, average slope 12.2%
- Climb 6 (at km 70.26 km): +753 m over 23.35 km, average slope 3.2%
- Climb 7 (at km 85.04 km): +643 m over 5.86 km, average slope 11.0%
- Climb 8 (at km 96.97 km): +47 m over 606 m, average slope 7.8%
- Climb 9 (at km 128.93 km): +678 m over 5.18 km, average slope 13.1%
- Climb 10 (at km 138.10 km): +95 m over 778 m, average slope 12.2%
- Climb 11 (at km 143.01 km): +304 m over 2.15 km, average slope 14.1%
- Climb 12 (at km 147.38 km): +48 m over 526 m, average slope 9.1%
- Climb 13 (at km 149.07 km): +69 m over 437 m, average slope 15.8%
- Climb 14 (at km 159.26 km): +716 m over 5.47 km, average slope 13.1%
