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

A 164.8 km National Hiking trail, GR 121 De Liège à la Côte d'Opale Parcours principal (ongoing correction) takes walkers through a varied section of terrain.

This 164.8 km route is a major undertaking — excellent fitness, reliable navigation, and multi-day planning are required. End-to-end time is roughly 36 hours and 37 minutes.

Point-to-point in layout, this trail takes you from A to B across the landscape. Consider your return logistics before heading out. Look for the GR 121 trail markings to stay on the official route.

The National Walking Network (NWN) designation reflects the importance of this trail at a national level. Expect consistent waymarking and well-maintained path surfaces.