This guidebook describes the 'classic' route to walking the GR20 on Corsica, along with high- & low-level alternatives, plus extra mountain climbs. The guide explains exactly what is involved in following the GR20, including what walkers need to carry & how difficult the route is in places. Detailed route descriptions give all the information required & there are stunning photographs to inspire you along the way. Corsica is a mountainous island in the Mediterranean & its GR20 is one of the greatest adventure treks in Europe. It is reputed to be the toughest waymarked trail of all the GR routes. An ambitious route for fit & agile walkers, it covers 190km in about two weeks as it makes a complete traverse through the high mountains, negotiating magnificent mountain terrain & following the rocky central spine of Corsica across the whole length of the isl&. Some sections of the route are on walking trails, others are on bare rock where some hands-on scrambling is necessary. Facilities are limited to a dozen mountain refuges & a mere handful of hotels or gites.