Guided trail on the GR20: from Calenzana to Conca in 8 days
In summary
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Sports
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Duration8 days
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LevelAdvance
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DestinationCorsica / Haute-Corse
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AgeFrom 18 - 70 years
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CO₂-Emissions96.31 kg CO2
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Type of stayIn a group
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Languages
French
In a few words
Take on one of the greatest challenges in European trail running: the entire GR20. For 8 days , you'll traverse the 200 km of this legendary trail, from Calenzana to Conca , in the heart of the Corsican mountains . Each day immerses you in spectacular scenery, from alpine ridges and high-altitude lakes to dense forests and technical sections . Led by an expert trail guide , you'll progress safely on this demanding route, renowned for its physical and mental challenges . The unique atmosphere of the mountain huts and sheepfolds where you'll stay, the warm Corsican hospitality , and the enriching interactions will heighten the intensity of the adventure. Reserved for experienced trail runners , this trip is a total immersion in nature , an experience of pushing your limits on one of the most beautiful mountain traverses in Europe.
The highlights
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All the stages from Calenzana to Conca
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Access to your bag at all stages
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Professional supervision
Photos
Sport
Level
Hiking / Trekking
In figures
Trail and road running
- Average duration/day: 13h
- Average distance/day: 29 km
- Average daily elevation gain: 1843 m
- Average daily descent: 1895 m
- Exposed Passages: Yes
Management
Your guide holds a state-certified mountaineering diploma and specializes in trail running on this route. Their in-depth knowledge of the terrain, weather, and local conditions guarantees a safe, enriching, and enjoyable experience. These passionate individuals are not only there to ensure your safety; they share their love of the Corsican mountains, their secrets, wildlife, flora, and history, transforming each stage into a moment of exchange and discovery.
Program
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Reception in Calvi and transfer to Calenzana
- Transportation Minibus - 00h30 - 10km
- Accommodation Cottage
- Breakfast not included
- Lunch not included
- Dinner included
Welcome and warm-up in Calenzana!
Meet your guide at Calvi train station at 3 pm, then a short transfer to Calenzana, an iconic village and the starting point of the GR20. Settle into the municipal gîte, followed by a friendly briefing and packing your bags before the first stages in the mountains. The adventure can begin!
Day 1 -
Calenzana in Haut Asco
- Activity Trail and road running
- Duration of the activity 14h
- Distance 25 km
- Positive elevation gain 3200 m
- Negative elevation 2000 m
- Exposed passages Yes
- Accommodation Cottage
- Breakfast included
- Lunch included
- Dinner included
A magnificent opening on the heights of Calenzana!
From the very first steps, the climb offers breathtaking views of the Bay of Calvi. The trail ascends through fragrant maquis shrubland, forgotten gardens, and pine forests before reaching the ridges of Capu Ghjovu (1,629 m) and the Ortu di Piobbu refuge. The atmosphere then becomes alpine and technical, with some exposed sections where you may need to use your hands. The panoramas of peaks over 2,000 m and the sea are simply magical. The descent via a scree slope leads to the Carrozzu refuge, the starting point for the famous Spasimata slabs and its suspension bridge. The ascent of the narrow valley reveals a high-altitude lake, then two spectacular passes before the final descent to the Haut-Asco ski resort.
Day 2 -
Upper Asco to Vergio
- Activity Trail and road running
- Duration of the activity 14h
- Distance 25 km
- Positive elevation gain 2000 m
- Negative elevation 2000 m
- Exposed passages Yes
- Accommodation Cottage
- Breakfast included
- Lunch included
- Dinner included
Under the gaze of the Corsican giant, Monte Cintu (2,706 m)
The stage begins with a demanding climb through a rocky landscape of boulders and scree, leading to the Pointe des Éboulis (2,607 m), which offers a breathtaking view of the Niolu region. The descent to the Tighjettu refuge marks a change of scenery: the trail becomes gentler and winds through beautiful Corsican pine forests. After passing Bocca Fogiale (1,962 m), the descent plunges into the glacial Golo valley, dominated by the majestic Paglia Orba (2,525 m). The route then reaches the highest refuge on the GR20, before continuing on to the Col de Vergio, the gateway to the mountainous heart of Corsica.
Day 3 -
Vergio in Frasseta
- Transportation Bus - 00h30 - 10km
- Activity Trail and road running
- Duration of the activity 12h
- Distance 30 km
- Positive elevation gain 1400 m
- Negative elevation 1900 m
- Exposed passages Yes
- Accommodation Bivouac / Tent
- Breakfast included
- Lunch included
- Dinner included
Between pastoral gentleness and alpine atmosphere!
The day begins gently with a gradual climb towards Lake Nino, a jewel nestled in the heart of verdant pools, where horses and cows graze peacefully. After a break at the Manganu refuge, the scenery changes dramatically: welcome to the high mountains! The trail ascends towards Bocca Alle Porte (2,200 m), revealing a spectacular view of the glacial lakes of Melo and Capitello, which are reached before descending towards Frasseta.
Day 4 -
Frasseta in Vizzavona
- Activity Trail and road running
- Duration of the activity 14h
- Distance 28 km
- Positive elevation gain 2300 m
- Negative elevation 2000 m
- Exposed passages Yes
- Accommodation Cottage
- Breakfast included
- Lunch included
- Dinner included
A spectacular alpine ascent goes up the Restonica valley to reach the crests of the Rotondo massif. After an aerial passage to the Petra Piana refuge, the descent heads towards the sheepfolds of the Onda before attacking the last northern stage. The route then climbs towards the crest of Monte d'Oro (2,389 m) before a long and fun forest descent to Vizzavona, in the heart of wild Corsica.
Day 5 -
Vizzavona - Verde
- Activity Trail and road running
- Duration of the activity 10h
- Distance 28 km
- Positive elevation gain 1300 m
- Negative elevation 1160 m
- Accommodation Cottage
- Breakfast included
- Lunch included
- Dinner included
An endurance stage in the heart of the Corsican mountains!
The longest stage in terms of distance, this day follows an old transhumance trail winding between beech forests and vast alpine pastures. The terrain becomes gentler and more rolling after the northern hills. The route reaches the Capannelle ski resort before continuing to the Col de Verde (1,289 m), a true crossroads of Corsican trails.
Day 6 -
Verde à Croci
- Activity Trail and road running
- Duration of the activity 12h
- Distance 30 km
- Positive elevation gain 1350 m
- Negative elevation 1600 m
- Exposed passages Yes
- Accommodation Cottage
- Breakfast included
- Lunch included
- Dinner included
Between sky and granite, a suspended moment!
This scenic stage winds along spectacular ridges, overlooking valleys that plunge towards the sea. After the Laparo pass (1,525 m), a sustained climb leads to the refuge. The impressive Statues Ridge, with its rocks sculpted into human forms, guides the ascent to the Cuscionu plateau (1,600 m). There, beech forests and vast meadows offer a pastoral landscape of rare beauty.
Day 7 -
Croci to Conca - transfer to Porto-Vecchio
- Transportation Bus - 00h45 - 15km
- Activity Trail and road running
- Duration of the activity 14h
- Distance 32 km
- Positive elevation gain 1350 m
- Negative elevation 2600 m
- Exposed passages Yes
- Breakfast included
- Lunch included
- Dinner not included
The iconic alpine variant of the Aiguilles de Bavella!
This unmissable stage crosses the spectacular granite towers that dominate the Asinao valley, offering breathtaking panoramas between sea and mountains. The final descent is gradual, through pine forests and fragrant maquis. We pass by the Paliri refuge before reaching the village of Conca, the end point of the adventure. Transfer to Porto-Vecchio in the late afternoon to conclude this exceptional journey .
Day 8
Note
This route is subject to weather conditions and terrain. The guide may adjust the route for safety reasons. In case of persistent snow, some sections may be bypassed.
If your physical or technical ability is deemed insufficient, for your safety as well as for the well-being and cohesion of the group, our guides would be forced to ask you to interrupt your GR20 trek. Furthermore, if your personal equipment is not suitable for high-mountain trekking (see our equipment list), and for obvious safety reasons, we would be unable to accept you at the start of the trip.
Accommodation
Access
Meet your guide at Calvi train station at 3pm, then a short transfer to Calenzana, an iconic village and the starting point of the GR20.
Go to the starting point
Price details
The price includes
- Full board accommodation,
- race provisions,
- local transfers,
- luggage transport,
- support.
The price does not include
- Drinks,
- the application fees,
- insurance,
- Site visits and transfers not included in the program.
Options
- Flex fare and insurance
Practical information
Specific formalities
Specifics
Before your departure, check with the embassy or consulate regarding the entry and stay requirements for your destination country. You can also find this information on the France Diplomatie website ( https://www.diplomatie.gouv.fr/fr/dossiers-pays/ ).
In the case of flights with stopovers operated by different airlines, also check the entry requirements of the countries you are transiting through.
It is your responsibility to ensure you are in compliance, particularly regarding the validity of your identity documents (for example, some countries require your passport to be valid for at least six months after your return) , visa requirements, necessary vaccinations, and health recommendations. And don't forget to consider any customs restrictions and other potential requirements of your destination or transit country.
ℹ️ Information may change up to the departure date, remember to regularly check official websites.
Equipment
Equipment provided on site
- tent
- mattress
Equipment to bring
For sleeping
- 1 lightweight sleeping bag (comfort rating 0 to 5°C recommended) – take a compact and lightweight sleeping bag (the guesthouses on the GR20 do not provide blankets)
- A sleeping bag liner (sewn bag) or a sheet (mandatory)
- Earplugs if you are a light sleeper
For the picnic
- A sealed plastic container (0.8 L) for transporting vegetable salads.
- Cutlery (fork, spoon, folding knife)
- A filtered water bottle or hydration pack is much more practical...
Small equipment
- A pair of jogging-style sneakers, or sandals for the evening
- A pair of telescopic poles (highly recommended)
- Sunglasses and high SPF sunscreen (lips and skin)
- A small toiletry kit and a compact towel
- A headlamp with a new battery or a spare battery
- Toilet paper
- 2 large garbage bags to protect your belongings from the rain
- A mini-pharmacy: personal medications, an anti-diarrheal, an external disinfectant (90% alcohol), an anti-inflammatory cream, Compeed paracetamol for blisters, elastic bandages, gauze, arnica granules and aspirin for minor injuries... a survival blanket
Clothing to bring
You should also plan to bring warm, quick-drying technical clothing.
In general.
-A waterproof and breathable jacket of the "Gore-Tex" type to protect against wind or rain,
-A fleece jacket, down jacket or softshell jacket,
-Breathable T-shirts made of technical fibers such as "Polartec" (more flexible and quick-drying),
-Lightweight or tight-fitting trousers
-A pair of shorts,
-A swimsuit,
-Spare clothes, undergarments of the Carline type (technical underwear), and personal linen,
-A hat or a cap,
-A hat,
-A pair of warm gloves,