Circuito de senderismo de 83.34 km desde Cangas de Onis. El desnivel positivo es de 13327 m, con una altitud entre 223 m y 2374 m. Duración estimada: 36 h 50 min. Municipio de salida: Cangas de Onis (Castilla y León, Espagne).
Esta ruta incluye 19 subidas significativas. Con un desnivel acumulado de 4897 m a lo largo de 21.96 km, con una pendiente media del 22.3%.
- Climb 1 (at km 8.06 km): +90 m over 871 m, average slope 10.3%
- Climb 2 (at km 9.99 km): +158 m over 1.14 km, average slope 13.9%
- Climb 3 (at km 14.44 km): +399 m over 2.48 km, average slope 16.1%
- Climb 4 (at km 22.03 km): +58 m over 103 m, average slope 56.1%
- Climb 5 (at km 23.13 km): +42 m over 99 m, average slope 42.5%
- Climb 6 (at km 24.04 km): +31 m over 63 m, average slope 49.0%
- Climb 7 (at km 24.67 km): +36 m over 77 m, average slope 47.0%
- Climb 8 (at km 34.19 km): +651 m over 2.98 km, average slope 21.9%
- Climb 9 (at km 39.58 km): +979 m over 3.65 km, average slope 26.8%
- Climb 10 (at km 59.29 km): +448 m over 2.05 km, average slope 21.9%
- Climb 11 (at km 61.84 km): +107 m over 461 m, average slope 23.2%
- Climb 12 (at km 62.72 km): +45 m over 258 m, average slope 17.4%
- Climb 13 (at km 64.64 km): +49 m over 276 m, average slope 17.8%
- Climb 14 (at km 74.00 km): +244 m over 2.07 km, average slope 11.8%
- Climb 15 (at km 84.50 km): +113 m over 549 m, average slope 20.6%
- Climb 16 (at km 88.87 km): +951 m over 2.86 km, average slope 33.2%
- Climb 17 (at km 89.95 km): +53 m over 145 m, average slope 36.6%
- Climb 18 (at km 93.19 km): +368 m over 1.51 km, average slope 24.4%
- Climb 19 (at km 94.33 km): +75 m over 325 m, average slope 23.1%
