Corsica: Trekking the GR20This guidebook describes the classic GR20 trek, a north to south traverse of the rugged mountains of Corsica, renowned as Europe's toughest GR long distance route. Described in 16 stages, some with high and low level alternatives, the route is roughly 190km in length and takes approximately two weeks to complete. The GR20 climbs high into the mountains. It is a demanding trek suitable only for experienced walkers, and there are several steep 'hands on
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