GR20 Guide

How many days?

16 classic stages, 10–16 realistic walking days — a table per fitness level, plus rest days and doubling stages.

North or south?

The trail splits at Vizzavona: technical granite north vs greener ridges south — and which direction to walk.

Booking refuges

Booking is mandatory for every night, tents included. How pnr-resa.corsica works and when to reserve.

When to go

Mid-June to mid-September is the classic window. Month-by-month pros and cons, snow and storms.

All refuges & huts

Every refuge, bergerie, gîte and hotel on the trail — altitude, resupply, water and booking links.

All 16 stages

Stage-by-stage distances, ascent, descent and walking times per fitness profile.