On the GR20
Photo: Rémih, CC BY-SA 4.0

Mountain trail

GR20

GR 20

The GR20 is a demanding high-mountain footpath that crosses Corsica from Calenzana in the north-west to Conca in the south-east along the island's granite spine.

At a glance

Starts in
Calenzana
Ends in
Conca
Length
180 km
On foot
16 days
Countries
France
Best months
June–October

About the trail

The trail follows the central ridge of Corsica, with rock scrambles, chains on steep sections and shelters run by the regional park. It is often described as one of Europe's hardest long paths because of rough ground and variable weather, even though the stages are short.

A typical day still means about seven hours of walking, and conditions are good from June to mid-October. The route is split into a harder northern half and a somewhat gentler south.