4-day excursion on the GR20 North
In summary
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Sports
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Duration4 days
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LevelAdvance
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DestinationFrance / Corsica
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AgeFrom 18 - 90 years
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CO₂-Emissions11.09 kg CO2
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Type of stayIndependent traveler
In a few words
This condensed version of the GR20 North offers an intense alpine hike in the heart of the wildest and most mineral part of the famous Corsican trail. In 4 days , you travel a demanding route departing and arriving from Calenzana , connecting two emblematic refuges: Ortu di u Piobbu and Carozzu .
The route winds along spectacular granite ridges , traversing rocky passages, scree slopes, and airy crest lines. Each stage offers breathtaking panoramas of the Corsican mountain ranges , bringing you close to some of the island's highest peaks . The atmosphere is decidedly mountainous , alternating between sustained effort and the magnificent landscapes typical of the GR20 North.
This trip is designed for experienced hikers in excellent physical condition , comfortable with technical sections and exposure to heights . The days are challenging and require endurance, concentration, and confidence on rugged terrain.
Ideal for those who wish to experience the intensity and mythical character of the GR20 , this short crossing allows you to immerse yourself in the route, without committing to the entire itinerary.
The highlights
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A short and concentrated stay to experience the essence of the GR20
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A challenging route through airy ridges, scree slopes and spectacular rocky passages.
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Magnificent panoramic views of the highest Corsican mountain ranges and iconic peaks
Photos
Sport
Level
Hiking / Trekking
The expert's opinion
Enjoy a fully independent stay: you will have access to an emergency number, reachable only between 9am and 7pm.
In figures
Trekking
- Average duration/day: 5h
- Average distance/day: 11 km
- Average daily elevation gain: 788 m
- Average daily descent: 770 m
Management
You will receive access to our trekking app, which serves as a complete digital travel guide for the GR20. Inside, you will find everything you need for your trek: route descriptions, hiking maps, navigation support, payment information, and all the key details specific to your trip.
Program
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Calenzana - Refuge of Ortu di u Piobbu
- Activity Trekking
- Duration of the activity 6h
- Distance 11 km
- Positive elevation gain 1370 m
- Negative elevation 90 m
- Accommodation Refuge
- Breakfast not included
- Lunch not included
- Dinner not included
This long initial climb takes you directly from the narrow streets of Calenzana into the mountains. As the path winds its way over the Balagne hills, the olive groves, terraced fields, and fragrant maquis gradually disappear. Further on, the forest closes in around you, offering glimpses of the bay and surrounding mountains through the trees. The day ends on a rocky ridge, not far from the hills below Monte Corona.
From the village, the route continues along cobbled streets and steps before joining a stony mule track through dense vegetation. After a while, the path steepens as it winds through fragrant maquis towards Bocca u Corsu, the first viewpoint overlooking the Bay of Calvi. The ascent continues through a pine forest to the Arghjova terrace, then along the ridge to Bocca à U Saltu (1,250 m). Beyond the grassy pass, the path crosses a challenging section and climbs to Bocca à U Bazzichellu (1,486 m).
As you approach the end, the rocky terrain gives way to scattered pine trees and small grassy terraces. The refuge is located just beyond a bend, perched on a hill with breathtaking views of the Balagne region. It's the perfect place to rest, enjoy the evening colors, and plan your next adventure.
Day 1 -
Ortu di u Piobbu Refuge - Carrozzu Refuge
- Activity Trekking
- Duration of the activity 4h
- Distance 8 km
- Positive elevation gain 600 m
- Negative elevation 850 m
- Accommodation Refuge
- Breakfast not included
- Lunch not included
- Dinner not included
This high route connects two rocky refuges via a winding mountain ridge. From the grassy terrace of the first refuge, the ascent is initially gentle before climbing steeply towards a series of passes. Once you've climbed above the last pine trees, you'll be rewarded with views of Punta Innominata (1,986 m) and the distant bulk of Monte Cinto (2,706 m). After reaching the highest point of the main ridge, the route continues downhill through darker forests to the second refuge.
From here, a marked path climbs through twisted pines and granite slabs. A clear spring and scattered stone ruins offer a chance for a brief respite before the long ascent. The path then narrows in zigzags along the ridge below the Bocca di Pisciaghja/Piccaia (2,012 m), offering sweeping views into the Bonifatu forest, before traversing exposed ledges. After a section of rock scrambling, you cross the Bocca di l'Innominata, situated between Punta Innominata (1,986 m) and Punta Ghialla (2,085 m).
The descent begins with rocky steps, which then soften into dirt paths winding through tall pines. Gradually, the sound of running water grows louder as you cross small streams and shaded ravines. A final winding path leads to a grassy clearing, among the trees of which you will see stone buildings and plowed platforms.
Day 2 -
Carozzu Refuge - Ortu di u Piobbu Refuge
- Activity Trekking
- Duration of the activity 5h
- Distance 11 km
- Positive elevation gain 910 m
- Negative elevation 630 m
- Accommodation Refuge
- Breakfast not included
- Lunch not included
- Dinner not included
This section of the trail connects the Carozzu refuge (1,270 m) to the Ortu di u Piobbu refuge (1,520 m), gradually ascending towards the higher reaches of the massif. Very quickly, the path leaves the refuge and becomes quieter, winding between granite boulders, maquis shrubland, and increasingly expansive views of the valleys. The route alternates between sections along ledges and crossings of small hollows, offering lovely views of the surrounding ridges.
After a steep start, the trail reaches the Lamitu stream, whose murmur accompanies the progress along a shaded section. Higher up, the natural pools of the Melaghia stream invite a pause, with their clear basins nestled between the rocks. The climb then becomes steeper, winding through the Laricio pine forest, whose straight trunks and filtered light create an almost ethereal atmosphere.
Emerging from the forest, the landscape opens up dramatically, and the Ortu di u Piobbu refuge appears above, perched on a rocky plateau. The final few meters are in a more alpine environment, giving the sensation of having truly gained altitude. Upon arrival, the refuge's atmosphere, the water sources, and the views of the surrounding peaks offer an ideal setting to relax, enjoy the scenery, and calmly plan the next leg of the journey.
Day 3 -
Ortu di u Piobbu Refuge - Calenzana
- Activity Trekking
- Duration of the activity 5h30
- Distance 12 km
- Positive elevation gain 270 m
- Negative elevation 1510 m
- Breakfast not included
- Lunch not included
- Dinner not included
This section of the trail leaves the Ortu di u Piobbu refuge (1,520 m) and descends gradually towards the sea and the village of Calenzana (275 m). From the very first steps, you feel yourself leaving the high mountains behind and slipping into a more Mediterranean atmosphere. The views open up to the ridges, the valleys, and, on a clear day, all the way to the coastline.
The highest point is near the refuge, from where the descent begins steadily. The trail follows the ridge of Capu Ghiovu (1,630 m), offering beautiful views of the rocky ridges and neighboring peaks. Lower down, you reach the Arghjova promontory, a natural balcony suspended above the valleys, ideal for a final break overlooking the Corsican interior. Gradually, the vegetation changes; the pines give way to maquis, oaks, and the scents of garrigue.
As you approach Calenzana, the road becomes gentler and the village appears nestled among fields, olive groves, and tiled roofs. The descent ends in narrow streets, amidst stone houses and small, shaded squares. It's an arrival that feels like a return to civilization, offering the chance to relax on a terrace, do some shopping, and soak up the Corsican atmosphere a little longer before hitting the road again.
Day 4
Note
For a fully independent stay, we recommend that you take out the multi-risk insurance offered when you book.
Accommodation
The Ortu di u Piobbu Refuge is a mountain refuge located at an altitude of 1,570 meters in the Monte Cinto massif, in northwestern Corsica. It is the first refuge on the famous GR20 trail starting from Calenzana. Surrounded by rocky ridges and high-altitude maquis shrubland, it offers a wild and authentic atmosphere, typical of the Corsican mountains. The refuge is an essential stop for hikers embarking on this demanding and iconic trek.
The Carozzu Refuge is a mountain refuge located at an altitude of 1,270 meters in the Monte Cinto massif, Corsica. It is one of the first legendary stages of the GR20, accessible after the spectacular Spasimata footbridge over the river. Nestled in a rocky and wooded setting, the refuge offers a rustic and welcoming atmosphere, ideal for regaining strength before tackling the more technical sections of the famous Corsican trail.
The Carozzu Refuge is a mountain refuge located at an altitude of 1,270 meters in the Monte Cinto massif, Corsica. It is one of the first legendary stages of the GR20, accessible after the spectacular Spasimata footbridge over the river. Nestled in a rocky and wooded setting, the refuge offers a rustic and welcoming atmosphere, ideal for regaining strength before tackling the more technical sections of the famous Corsican trail.
- Single-sex shared dormitory
- Mixed shared dormitory
Access
Go to the starting point
Train + bus option from Calvi:
- Train to Calvi (from Bastia or L'Île-Rousse).
- Bus/Coach Calvi → Calenzana :
- Regular Corsicar bus or seasonal public transport between Calvi and Calenzana (journey ~30 min).
- Indicative price: ≈ €9 – €10 / person.
- Higher frequency in summer (approx. 2 trips per day between June and September).
👉 Taxi Calvi ➜ Calenzana : approximately 12–15 min / ~30 – 45 € (more flexible if variable times).
Price details
The price includes
- The digital travel guide
- Accommodation in mountain huts and dormitories
- Telephone support is available from 9am to 7pm.
The price does not include
- All meals
- Luggage transport
- The journey to the place of stay
- Drinks and personal expenses
- The solo supplement (€60)
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
- Blankets are provided in the mountain refuge and gîte.
Equipment to bring
- A pair of lightweight sandals for the refuge or a pair of sneakers
- A toiletry bag (earplugs recommended)
- A quick-drying bath towel
- For sleeping in mountain huts or guesthouses: a sleeping bag liner
- A small flashlight (with spare batteries)
- Telescopic walking poles (recommended)
- A 1.5L water bottle or hydration pack
- A pocket knife
- An individual plastic container for lunch salads + cutlery and a cup
- Sunscreen cream (skin and lips) + after-sun lotion
- Toilet paper + small garbage bag
- Optional: camera, binoculars…
Warning: the mountains are unpredictable and unpredictable. We've tried to consider all the different weather conditions they can present. This equipment list will help you adapt comfortably to the mountain's moods!
Clothing to bring
- A cap or a hat
- A pair of sunglasses
- A hat or a headband
- T-shirt (carline type, quick-drying material)
- A warm shirt or a thin fleece
- A warm jacket (fleece type)
- A windproof jacket (like a K-Way or Gore-Tex)
- A closed rain cape with sleeves, without snaps, made of polyamide
- Lightweight canvas trousers
- Windproof trousers (like Kway or Gore Tex),
- Shorts or capri pants
- Socks (100% wool: warm, absorbs and wicks away moisture, prevents foot overheating; synthetic fibers: very good resistance, absorbs and wicks away moisture, but be careful if 100% synthetic as it can cause foot overheating; cotton: absorbs moisture but doesn't wick it away well)
- Trekking shoes: they're a hiker's best friend! They must have three qualities: sturdiness, good foot and ankle support (high-tops), and waterproofing.
- Choose shoes with non-slip, cleated soles that are relatively rigid. They need to grip the ground well. Vibram soles have a long-standing reputation; choose them if you have the option.
- A pair of long gaiters
- A pair of gloves
- Spare underwear
- A pair of lightweight canvas trousers and a spare pair of shorts
- Spare socks
The Sierd team
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- You pay a 30% deposit today to reserve your stay.
- The balance (the remaining 70%) must be paid no later than 30 days before departure.
- ✅ Of an amount greater than €300.
- ✅ Whose departure is in more than 30 days.