Circuito de senderismo de 142.69 km desde Forêt. El desnivel positivo es de 4540 m, con una altitud entre 78 m y 694 m. Duración estimada: 50 h 10 min. Municipio de salida: Forêt (Wallonie, België / Belgique / Belgien).
Esta ruta incluye 21 subidas significativas. Con un desnivel acumulado de 2674 m a lo largo de 41.05 km, con una pendiente media del 6.5%.
- Climb 1 (at km 3.35 km): +99 m over 1.40 km, average slope 7.1%
- Climb 2 (at km 6.86 km): +97 m over 1.30 km, average slope 7.4%
- Climb 3 (at km 19.47 km): +287 m over 4.38 km, average slope 6.6%
- Climb 4 (at km 27.97 km): +171 m over 3.06 km, average slope 5.6%
- Climb 5 (at km 35.06 km): +134 m over 2.06 km, average slope 6.5%
- Climb 6 (at km 40.26 km): +72 m over 1.77 km, average slope 4.1%
- Climb 7 (at km 42.46 km): +52 m over 962 m, average slope 5.4%
- Climb 8 (at km 70.36 km): +147 m over 1.67 km, average slope 8.8%
- Climb 9 (at km 73.38 km): +91 m over 1.30 km, average slope 7.0%
- Climb 10 (at km 79.39 km): +170 m over 1.69 km, average slope 10.1%
- Climb 11 (at km 87.71 km): +351 m over 3.24 km, average slope 10.8%
- Climb 12 (at km 93.66 km): +198 m over 3.28 km, average slope 6.0%
- Climb 13 (at km 98.26 km): +34 m over 775 m, average slope 4.4%
- Climb 14 (at km 99.86 km): +37 m over 600 m, average slope 6.2%
- Climb 15 (at km 101.14 km): +58 m over 817 m, average slope 7.1%
- Climb 16 (at km 106.54 km): +112 m over 1.89 km, average slope 5.9%
- Climb 17 (at km 109.65 km): +49 m over 546 m, average slope 9.0%
- Climb 18 (at km 113.16 km): +102 m over 1.39 km, average slope 7.4%
- Climb 19 (at km 120.29 km): +70 m over 1.00 km, average slope 7.0%
- Climb 20 (at km 137.39 km): +301 m over 6.74 km, average slope 4.5%
- Climb 21 (at km 139.32 km): +42 m over 1.17 km, average slope 3.6%
