Circuito de senderismo de 121.23 km desde Mendiondo. El desnivel positivo es de 5975 m, con una altitud entre -2 m y 355 m. Duración estimada: 48 h 40 min. Municipio de salida: Mendiondo (Euskadi, Espagne).
Esta ruta incluye 11 subidas significativas. Con un desnivel acumulado de 3438 m a lo largo de 53.41 km, con una pendiente media del 6.4%.
- Climb 1 (at km 13.49 km): +327 m over 3.56 km, average slope 9.2%
- Climb 2 (at km 21.65 km): +218 m over 2.91 km, average slope 7.5%
- Climb 3 (at km 69.13 km): +738 m over 9.59 km, average slope 7.7%
- Climb 4 (at km 96.12 km): +344 m over 15.35 km, average slope 2.2%
- Climb 5 (at km 103.24 km): +271 m over 2.82 km, average slope 9.6%
- Climb 6 (at km 111.66 km): +161 m over 3.09 km, average slope 5.2%
- Climb 7 (at km 136.14 km): +122 m over 2.44 km, average slope 5.0%
- Climb 8 (at km 143.90 km): +347 m over 3.28 km, average slope 10.6%
- Climb 9 (at km 156.91 km): +299 m over 4.13 km, average slope 7.3%
- Climb 10 (at km 174.26 km): +324 m over 3.08 km, average slope 10.5%
- Climb 11 (at km 197.70 km): +287 m over 3.16 km, average slope 9.1%
