by The GR20 is a long hike that crosses the Mediterranean island of Corsica from the north to the south. It is considered as one of the most difficult GR (“Grande Randonnée”) footpath because of its steep and rocky paths. There are some sections with chains, rock climbing and footbridges.
The whole trail is about 180 km long with about 12,000m of elevation gain and can be extended with some variant routes and beautiful summits.
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