GR®121 is a 256.4 mile point-to-point trail located near Wavre, Walloon Brabant, Belgium that features a river and is rated as moderate. The trail is primarily used for backpacking.

Length256.4 miElevation gain24,419 ftRoute typePoint to point
BackpackingForestRiverViewsWildflowersWildlifeHistoric site
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