The Grand Randonnee (GR) 20 is considered to be Europe's most challenging long distance walking trail. Established in 1972 the route traverses the interior of Corsica for 200kms, crossing granite mountains and rugged alpine terrain with opportunities to view stunning snowcapped peaks and in the distance Corsica's dramatic coastline. The outstanding feature of the walk is the diversity of terrain, from lush forests of pine and beech to narrow trails through towering pinnacles, to high windswept plateaus. At night the warm hospitality of the gîtes d’etapes or mountain refuges (complete with hot shower) makes for a welcome treat where like minded walkers can share their experiences of the day. This trip is suitable for fit walkers with good outdoor experience in mountainous terrain, who are able to navigate using a map (scaled to 1/25000th). Stunning gorges, alpine lakes and the legendary Circus of the Solitude are included in this challenging hike from Calvi in the north of Corsica to Corté near the centre of the island. On some stages you will be required to climb ladders to ascend the granite passes, however the 360 degree views are worth the effort. Your main luggage is transferred most days, allowing you to walk with just a day pack. There is plenty of opportunities to sample the local mountain produce and swim in alpine lakes and rivers during this rugged traverse.