GR3A
A 37.5 km National Hiking trail, GR3A takes walkers through a varied section of terrain.
Covering 37.5 km, this is a true long-distance trail best approached as a multi-day journey through varied terrain.
This linear trail moves from one end to the other without looping back. A return journey by transport — or retracing the path — is needed to get back to the start. Look for the GR 3A 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.
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SRTM-Höhendaten über OpenTopoData (offener Datensatz).