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GR 121 De Liège à la Côte d'Opale Parcours principal (ongoing correction)

Hiking Very hard Created at: March 16, 2026

Informations

Distance 164.74 km
Elevation gain 2514 m
Elevation loss 2494 m
Altitude minimum 33 m
Altitude maximum 206 m
Altitude Start 43 m
Altitude End 63 m
Estimated hiking time 43 h
Difficulty Very hard

164.74 km loop hiking starting from Brussels. Elevation gain is 2514 m, with altitude ranging from 33 m to 206 m. Estimated time: 43 h. Starting town: Brussels (Wallonie, België / Belgique / Belgien).

This hike includes 1 significant climbs. With a total elevation gain of 1060 m across 38.56 km, with an average slope of 2.8%.

  • Climb 1 (at km 131.58 km): +1060 m over 38.56 km, average slope 2.8%

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