How many kilometers long is the GR20?
According to our calculation based on the waymarked route mapped in OpenStreetMap, the main route is about 184 km long from Calenzana to Conca, with about 11,100 m of ascent. Published sources give between 177 and 185 km depending on the variants taken.
How many days does the GR20 take?
The Park's official itinerary has 16 stages. Most hikers complete it in 15 or 16 days; the fittest in 12 or 13 days, and fastpacking trail runners in 7 to 9 days. Many only do one half: the north (Calenzana – Vizzavona) in 6 to 10 days, or the south (Vizzavona – Conca) in 5 to 8 days. See our itineraries.
What is the highest point of the GR20?
The Pointe des Éboulis (2,607 m), on the Haut-Asco – Tighjettu stage, since the route no longer goes through the Cirque de la Solitude. Monte Cinto (2,706 m), the highest summit in Corsica, can be climbed as a return trip from this point.
Do you need to book the GR20 huts?
Yes: booking is compulsory for every night, including bivouacs, on the Park's platform (pnr-resa.corsica). Each hut has a nightly quota. Details in our booking guide.
When do GR20 bookings open for 2027?
The 2027 date had not been announced as of November 2026. In 2026, the platform opened on January 20 (January 15 in 2024): bookings will probably open in January 2027. The Ortu di u Piobbu, Carrozzu and Usciolu huts are the first to fill up.
How much does a night in a GR20 hut cost?
In 2026: €20 in a dormitory, €12 to bivouac in your own tent and €27–39 in a rental tent. Allow about €20 for dinner and €10 for breakfast. See the budget guide.
Is the Cirque de la Solitude still on the GR20?
No. Since the accident in June 2015, the GR20 has followed a replacement route via the Pointe des Éboulis, which has become the official route. The Park describes the cirque as off-limits. See our in-depth guide.
GR20 North or GR20 South: which should you choose?
The north (Calenzana – Vizzavona, 9 stages) is rockier, more technical and more spectacular; the south (Vizzavona – Conca, 7 stages) is more wooded and a little less technical. See our comparison.
Is the GR20 dangerous?
It is a demanding trek: rocky terrain, chain-equipped sections, thunderstorms, heat and lack of water. The Corsican PGHM (gendarmerie mountain rescue) is called out very often in summer. With good preparation, a close eye on the weather and by staying on the waymarked trail, it is still within reach of well-trained hikers. See safety and water.
Can you bivouac on the GR20?
Only near the huts, in the designated areas and with a booking. Wild camping is prohibited along the entire route. See the Park rules.
Is there water on the GR20?
The huts have running water, but it is not tested: the Park recommends a filter bottle and purification tablets. Some stages have no water point at all (Carrozzu – Haut-Asco) or run short in summer (Prati – Usciolu). Each stage page lists the water points.
When is the best time to hike the GR20?
The huts are staffed from mid-May to early October (May 16 – October 4 in 2026). June and September are the best months, but also the most in demand. In spring, snowfields linger above 2,000 m. See when to go.
How do you get to Calenzana and away from Conca?
Fly into Calvi airport (about 13 km from Calenzana, by bus or taxi) and leave via Porto-Vecchio and Figari airport using the Conca shuttle. The train serves Vizzavona, halfway along the route. See getting there and transport.
Can you hike the GR20 with a dog?
Dogs must be kept on a leash, are strongly discouraged on some sections and are banned from the huts and rental tents.
Is there a free GPX track of the GR20?
Yes: we offer a free GPX track of the full route, each of the 16 stages and the mapped variants, taken from OpenStreetMap with elevations.