GR20, Corsica

The GR20 is widely considered the toughest long-distance trail in Europe. Running the length of Corsica, it traverses jagged granite peaks, deep gorges, and high-altitude plateaus. It is not for the faint of heart; the terrain is technical, requiring scrambling and significant physical endurance. However, the reward is a wild, Mediterranean mountain experience that is completely unique.

The trail is serviced by 'refuges' that provide basic shelter and food. It is the ultimate test for experienced backpackers looking to push their limits in a stunning, rugged environment.