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Corsica GR20
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The GR20 in Corsica is widely regarded as one of the most challenging and spectacular long-distance hiking trails in Europe. Spanning approximately 180 kilometers, it traverses the island diagonally from Calenzana in the northwest to Conca in the southeast. The route follows the mountainous backbone of the island, passing through high-alpine landscapes, over rugged granite peaks, and through deep glacial valleys, with a total elevation gain of around 12,000 meters. The trail is typically divided into 16 stages, with the northern section being technically more demanding and rocky, while the southern part has slightly gentler terrain. Hikers rely on a network of mountain refuges, which often require booking months in advance during the peak summer season. Beyond the physical endurance required, the GR20 provides unparalleled views of the Mediterranean Sea and Corsica's highest summits, including Monte Cinto. Completing the trail demands excellent fitness, sure-footedness, and mountain experience due to unpredictable weather patterns.
- Location: Corse, France
- Top sights: Punta Tirulellu · Arte Gallaria · Ruine de la bergerie de Toma
- Nearby: Casaglione (19 km)
Best time to visit & climate
The most pleasant time to visit is Jun, Jul, Sep.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 9 | 9 | 11 | 14 | 17 | 22 | 25 | 25 | 21 | 18 | 13 | 10 |
| Rain mm | 100 | 91 | 83 | 63 | 60 | 24 | 10 | 16 | 57 | 104 | 128 | 99 |
📋 Practical info
Getting there
This challenging long-distance hiking trail crosses the island from north to south, with most hikers traditionally beginning their journey in northern Calenzana or southern Conca, both of which are typically accessible by local buses or taxis.
Best season
The classic hiking season for this high-mountain route is generally limited to the snow-free months from mid-June to September, as outside of this window, dangerous snowfields, closed mountain huts, and highly unpredictable weather tend to dominate.
Terrain & paths
The route is considered extremely alpine and very steep, featuring rough rocky sections, loose scree fields, and passages that require light scrambling; absolute surefootedness and a head for heights are mandatory for navigating this rugged landscape.
What to bring
High alpine gear is absolutely indispensable: this includes well broken-in mountain boots, a robust backpack, a sleeping bag, weatherproof clothing for sudden temperature drops, as well as ample water supplies and high-energy trail snacks.
Parking
Since this is a traverse trail, arriving by personal car is somewhat impractical; those who do drive can usually park their vehicles in the starting towns, but must independently organize the often logistically complicated return journey back to their car.
Safety
Summer thunderstorms can be life-threatening in the mountains, which is why early morning departures are the norm; furthermore, physical endurance must be honestly assessed due to the enormous elevation changes and the extremely isolated trail sections.
Time needed
Experienced mountain hikers generally plan 14 to 16 days to complete the entire route, though it is also quite possible to hike only the northern or southern half in approximately one week as separate, slightly shorter trekking adventures.
Geography
Facts
- The total length of the GR20 is approximately 180 kilometers.
- Hikers must overcome a total elevation gain of about 12,000 meters.
- The trail is traditionally completed in 16 daily stages.
- Vizzavona marks the midpoint and offers access to the island's railway.
- The highest point on the trail reaches an altitude of 2,225 meters.
- The hiking route was officially established in 1970.
Explore nearby
Notable places around
Route planner — Car & Motorhome
Where do you start? We build the route here, with stops and country notes along the way.
Vehicle
Only stops with (optional):
© OpenStreetMap contributors · OpenRouteService
Sights in the town Corsica GR20 (4)
Sights nearby
Frequently asked questions
How long does it take to complete the entire GR20 trek?
The 180 km route is typically divided into 15 stages, taking about 15 days to complete.
What level of fitness is required for the GR20?
It is considered Europe's toughest long-distance trail; very high stamina and sure-footedness are essential.
Where can you stay overnight during the trek?
Overnight stays are only allowed in official mountain huts (refuges) or in tents pitched right next to them.
When is the best time to hike the GR20?
The best time is from late June to early September, when the huts are open and trails are snow-free.
Are there drinking water sources on the trail?
Drinking water is available at every hut; however, springs between stages are often unreliable.
Corsica GR20: where is it located?
Corsica GR20 is located in Corse, France.
Corsica GR20: what is there to see?
Highlights include Punta Tirulellu, Arte Gallaria, Ruine de la bergerie de Toma.
Corsica GR20: when is the best time to visit?
The most pleasant time to visit is Jun, Jul, Sep.
Corsica GR20: why is it worth visiting?
The GR20 in Corsica is widely regarded as one of the most challenging and spectacular long-distance hiking trails in Europe.
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