The GR20 in Corsica, renowned as one of the most iconic and demanding hiking trails in Europe, crosses the island from north to south over a distance of approximately 180 kilometers . For 2025, an emerging trend reveals that hikers are favoring a segmented exploration of this illustrious route, thus offering a more flexible approach adapted to varying physical abilities.
This strategy has the advantage of allowing you to take advantage of campsites and accommodations located near the various access points, greatly simplifying logistical planning. Furthermore, hiking the GR20 in sections allows you to appreciate the diversity of Corsican landscapes while respecting your personal pace and time constraints.
Thanks to new infrastructure and access improvements planned for 2025, the GR20 is becoming even more attractive for hikers of all levels . This guide offers a detailed description of the routes by the most accessible sections, lists ideally located campsites, and provides expert advice to help you make the most of every stage of this memorable Corsican adventure.
The GR20 by sections: understanding the legendary route
Approaching the GR20 section by section requires a good understanding of the overall structure of this exceptional trail. This modular approach revolutionizes the way we tackle this legendary hike.
GR20 North vs GR20 South: major differences
The GR20 naturally divides into two distinct sections, separated by the Vizzavona resort, a key crossing point. The northern section, stretching from Calenzana to Vizzavona , is characterized by more technical and rocky terrain , with climbing sections and particularly demanding elevation gains. This section includes the most challenging stages of the route, notably the crossing of the Cirque de la Solitude and the ascent to the Carozzu refuge .
Conversely, the GR20 South from Vizzavona to Conca offers a more rolling profile and generally longer stages in terms of distance, but less technical terrain. Nevertheless, this section should not be underestimated, as it also presents its own challenges, particularly when crossing the Cuscionu plateaus and approaching the Bavella Needles .
Indeed, this section of the trail reveals a great diversity of landscapes, where Corsican pine forests, mountain lakes, and impressive granite formations follow one another. Note that each section has its own unique appeal : the north fascinates with its rugged, mineral landscape and alpine panoramas, while the south captivates with its ecological diversity and more Mediterranean atmosphere . This dichotomy allows hikers to choose the section that best suits their expectations and technical ability.
Accessible sections for beginners in the mountains
For beginner hikers or those wishing to discover the GR20 without committing to the entire route, certain sections are particularly suitable. The section from Vizzavona to Capannelle is an excellent introduction, combining a moderate elevation gain with soothing forest landscapes and easy access to Vizzavona ‘s facilities .
Similarly, the Bavella-Conca section offers a beautiful conclusion with exceptional panoramas of the Gulf of Porto-Vecchio while remaining technically accessible. This final stage allows you to experience the authentic atmosphere of the GR20 without the technical difficulties of the northern sections .
Furthermore, strategic escape routes such as Asco, the Vergio Pass, or Bavella allow the route to be adapted in real time according to weather conditions or physical condition. This flexibility is a major advantage of the sectional approach, allowing for complete personalization of the experience to suit each individual’s aspirations.
Detailed itineraries of the northern sections of the GR20
The northern part of the GR20 concentrates the most challenging technical aspects of the route, but also offers some of the most beautiful visual rewards of the Corsican crossing.
Essential technical sections of the north
The Calenzana-Ortu stage is traditionally the baptism of fire for GR20 hikers. At 11 kilometers, with 1450 meters of elevation gain and a 6.5-hour hike, this first section immediately sets the tone for the adventure. It’s worth noting that the Ortu refuge , partially destroyed by a fire in 2019, now operates under modified conditions but remains operational.
The Ortu-Carozzu section is undoubtedly one of the most spectacular parts of the northern route. Despite its seemingly modest 8 kilometers, this stage requires 7 hours of hiking due to technical sections and breathtaking panoramas . Reaching the Carozzu refuge , perched on its panoramic terrace, is one of the most memorable rewards of the GR20.
For example, the crossing of the Cirque de la Solitude between Carozzu and Asco Stagnu remains the major psychological and technical challenge of the northern GR20. This section requires climbing skills and perfect self-control, explaining why many hikers choose the variant via Asco to avoid these difficulties.
Access points and estimated travel times
Access to the northern section of the GR20 is facilitated by several strategic entry points, allowing hikers to begin or interrupt their journey depending on their goals. Calenzana , accessible by bus from Calvi , is the traditional starting point and offers accommodation suitable for hikers.
Asco is an ideal starting point for those wishing to avoid the most technical sections. This resort offers easy access to the coast via regular transport links, while still providing a taste of the Nordic GR20. Furthermore, Asco offers convenient food and accommodation options after the exertion of the previous stages .
The Haut-Asco resort also offers an attractive starting point for tackling the central sections of the GR20 North without having to deal with the initial difficulties. This option is particularly suitable for experienced hikers wishing to focus on the most technical sections without the strain of the first stages.
Route of the southern sections of the GR20
The GR20 South offers a different but equally enriching experience, with longer stages and more varied atmospheres than its northern counterpart.
More accessible sections of the south
The Vizzavona-Capannelle stage is a pleasant introduction to the GR20 South. This transitional section allows you to gradually acclimatize to the effort while crossing the magnificent beech forest of Vizzavona. The trail winds its way up to Bocca Palmente at 1650 meters, rewarding the effort with breathtaking views of the Tyrrhenian Sea .
The crossing of the Renoso massif via the old transhumance route between Capannelle and the Col de Verde is one of the most peaceful sections of the GR20. This stage introduces hikers to the specific characteristics of the Corsican terrain while maintaining a reasonable level of difficulty. Passing by the Traggette sheepfolds and the Gialgone plateau at 1592 meters altitude perfectly illustrates the diverse landscapes of the southern GR20.
In addition, the magnificent Marmano Giants fir forest on this same section offers a unique moment of contemplation. These centuries-old trees create a cathedral-like atmosphere, particularly appreciated after the exertion of the more alpine sections of the route.
Strategic Variants and Escape Routes
The Col de Verde is a major strategic exit point for hikers on the southern GR20. Accessible by vehicle, its location allows for easy adjustment of the length of the trip depending on weather conditions or fitness level. Furthermore, the pass’s infrastructure facilitates resupply and temporary accommodation.
The Cuscionu-Bavella section has the advantage of being able to be shortened or lengthened as desired. The Cuscionu plateau offers opportunities for wild camping (in compliance with regulations), while Bavella has hotel and restaurant facilities for a comfortable break.
It is important to emphasize that Bavella is an ideal starting point for exploring the final sections of the GR20 without having to undertake the entire route. The Bavella Needles provide a magnificent backdrop for an introduction to the GR20, with the option of choosing between the technical alpine variant and the more accessible classic route.
Campsites and accommodations near the GR20
Accommodation infrastructure around the GR20 has developed considerably, facilitating the approach by sections thanks to strategically positioned campsites.
Northern campsites: from Calenzana to Vizzavona
Camping Paradella near Calenzana is the ideal base for preparing to set off on the GR20. Open from March 29th to October 11th, 2025, this 3-star campsite offers chalets, mobile homes, and camping pitches in a protected environment close to the beaches of Calvi . Its location, just ten minutes from the Bonifato forest, makes it a prime access point to mountain trails.
Camping Paradella’s facilities include a restaurant, grocery store, swimming pool and tennis courts, allowing for optimal preparation before the GR20 adventure. In addition, the new ” La Marmite du Chef ” restaurant, added in 2025, enhances the dining options, while September promotions on ” Eucalyptus ” mobile homes make accommodation more affordable.
In Vizzavona , a key point on the GR20, hikers have several options depending on the section. Alzarella Bivouac offers 40 campsites at €9 per person in 2025, with hot showers and an outdoor kitchen . This facility, dedicated to hikers, provides an ideal transition between the northern and southern sections of the GR20.
South campsites: from Vizzavona to Conca
Camping La Halte du Prince at the Col de Vizzavona offers a convenient alternative for hikers. Located in the hamlet of Foce, directly on the GR20 hiking trail, this budget-friendly accommodation provides various packages to suit different budgets. Its altitude of 920 meters ensures welcome shade during the summer months.
In Conca , a traditional terminus of the GR20 long-distance hiking trail, Camping La Tonnelle welcomes hikers on four shaded terraces. This family-run campsite, with around forty pitches, has a full sanitary block and is located just a few meters from the official start/finish line of the GR20 . Rates for 2025 are €11 per person, with half-board available for €41.
Camping La Tonnelle offers services including laundry (€6), drying facilities (€4), and secure parking (€3 per day), making life easier for hikers. It’s important to note that reservations are not taken for the campsite; availability is based on arrival. Here are the main campsites by geographic area:
North (Calenzana-Vizzavona):
- Paradella campsite : chalets, mobile homes, tent pitches;
- Calenzana municipal lodge : 30 beds + tent pitches;
- Alzarella Bivouac Vizzavona : 40 dedicated hiker sites;
- The Prince’s Halt : budget accommodation at the pass.
South (Vizzavona-Conca):
- Camping La Tonnelle Conca : 40 shaded pitches;
- La Tonnelle guesthouse : rooms and dormitories;
- various sheepfolds and shelters along the way.
This geographical distribution greatly facilitates the planning of sections , with each accommodation point allowing for exploration of several stages of the GR20 according to the objectives set.
Practical advice for hiking the GR20 section by section
The GR20 section approach requires specific planning and material adaptations to optimize each outing.
Appropriate equipment and physical preparation
The equipment required for sections of the GR20 differs significantly from that needed for a complete traverse. The main advantage lies in the ability to carry less gear, particularly food and camping equipment . Nevertheless, essential safety items must be kept: hiking boots, technical clothing, a first-aid kit, and navigation equipment .
Physical preparation for different sections can be more targeted depending on the chosen stages. Northern sections require training focused on strength and agility, while southern sections prioritize endurance and resistance to long distances . This specialization allows for optimized training according to the established objectives.
It should be noted that several months of preparation are still recommended even for a sectional approach. The intensity of the GR20, even on short sections, requires a solid level of fitness and prior mountain hiking experience to fully enjoy the journey .
Optimal periods and bookings for 2025
The 2025 season runs from May to October, with optimal conditions from mid-June to mid-September. The first departures on the GR20 South are possible from the beginning of May, while the GR20 North generally opens in June due to late snow conditions. This seasonal difference directly influences the planning of the sections.
Accommodation bookings are crucial, especially during peak season. Mountain huts in the Corsican Regional Natural Park open their bookings according to a specific schedule, while private campsites often operate on a first-come, first-served basis . This difference necessitates a degree of flexibility in planning hiking sections.
Furthermore, weather conditions significantly influence the feasibility of the technical sections. Monitoring forecasts and adapting to changing conditions are essential skills for successfully tackling the GR20 section by section , particularly on the most exposed parts of the northern route.
The GR20’s section-based approach revolutionizes the experience of this legendary trail, making it accessible to a wider audience while preserving its exceptional character. It’s worth noting that this strategy allows the experience to be perfectly tailored to each individual’s abilities and limitations, from introductory hikes on the southern sections to the technical challenges of the north.
Moreover, the network of strategically located campsites and accommodations greatly facilitates logistical planning and makes this approach even more appealing. The fact is that the 2025 infrastructure and new access methods significantly improve the conditions for discovering this exceptional natural heritage.
Believe it or not, even the most experienced hikers are now adopting this modular approach to explore certain sections more deeply or share the experience with companions of varying abilities. This democratization of the GR20 by sections helps to preserve the environment by better distributing visitors while maintaining the authentic essence of this unique Corsican adventure . Ultimately, hiking the GR20 in sections in 2025 represents a modern and respectful approach to this jewel of European hiking . It guarantees unforgettable memories while respecting everyone’s abilities and the fragility of these exceptional landscapes.
