145.07 km loop hiking starting from Grand-Halleux. Elevation gain is 4503 m, with altitude ranging from 254 m to 694 m. Estimated time: 56 h 30 min. Starting town: Grand-Halleux (Wallonie, België / Belgique / Belgien).
This hike includes 23 significant climbs. With a total elevation gain of 2797 m across 62.48 km, with an average slope of 4.5%.
- Climb 1 (at km 1.11 km): +69 m over 851 m, average slope 8.1%
- Climb 2 (at km 5.98 km): +89 m over 1.49 km, average slope 6.0%
- Climb 3 (at km 9.55 km): +179 m over 2.51 km, average slope 7.1%
- Climb 4 (at km 12.84 km): +110 m over 1.61 km, average slope 6.8%
- Climb 5 (at km 17.45 km): +87 m over 2.02 km, average slope 4.3%
- Climb 6 (at km 21.42 km): +93 m over 2.17 km, average slope 4.3%
- Climb 7 (at km 27.75 km): +113 m over 1.61 km, average slope 7.0%
- Climb 8 (at km 34.39 km): +147 m over 2.83 km, average slope 5.2%
- Climb 9 (at km 43.04 km): +157 m over 2.88 km, average slope 5.4%
- Climb 10 (at km 47.31 km): +50 m over 571 m, average slope 8.8%
- Climb 11 (at km 51.70 km): +168 m over 2.15 km, average slope 7.8%
- Climb 12 (at km 65.32 km): +102 m over 5.61 km, average slope 1.8%
- Climb 13 (at km 70.36 km): +41 m over 1.16 km, average slope 3.6%
- Climb 14 (at km 130.17 km): +101 m over 825 m, average slope 12.2%
- Climb 15 (at km 136.52 km): +151 m over 2.89 km, average slope 5.2%
- Climb 16 (at km 150.98 km): +202 m over 2.98 km, average slope 6.8%
- Climb 17 (at km 159.49 km): +214 m over 1.94 km, average slope 11.0%
- Climb 18 (at km 182.49 km): +264 m over 17.71 km, average slope 1.5%
- Climb 19 (at km 187.54 km): +163 m over 2.80 km, average slope 5.8%
- Climb 20 (at km 192.85 km): +78 m over 2.39 km, average slope 3.3%
- Climb 21 (at km 206.16 km): +102 m over 2.80 km, average slope 3.6%
- Climb 22 (at km 212.63 km): +61 m over 340 m, average slope 17.9%
- Climb 23 (at km 214.17 km): +56 m over 325 m, average slope 17.2%
