The GR20 in Corsica is widely regarded as one of the most challenging and stunning long-distance trails in Europe. Spanning roughly 180 kilometers (112 miles) across the rugged terrain of Corsica, this trail attracts seasoned hikers from all over the world. It offers an unparalleled combination of natural beauty, physical challenges, and rewarding vistas that make it a must-do for any trekking enthusiast.
In this comprehensive guide, we will walk you through everything you need to know about the GR20 Corsica, from the best time to go, to the necessary gear, and what to expect along the way.
What is the GR20 Corsica?
The GR20 is a long-distance hiking trail that runs from the northern part of Corsica (Calenzana) to the southern tip (Conca). It is part of the GR footpaths network in Europe and is considered by many as the toughest of them all. The trail was established in 1972 and has since gained a reputation for its steep ascents, rocky paths, and unpredictable weather.
However, what sets the GR20 apart from other hiking trails is not just its difficulty, but its breathtaking scenery. The route cuts through the Corsican mountain range, offering hikers views of jagged peaks, lush valleys, and even glimpses of the sea.
Why Hike the GR20?
The GR20 is more than just a physical challenge; it’s a journey through some of the most remote and untouched parts of Corsica. If you’re looking for an adventure that tests your endurance while rewarding you with spectacular natural beauty, then this trail is for you.
Unparalleled Scenery
The GR20 Corsica provides a stunning diversity of landscapes. As you trek through its rough terrain, you’ll witness pristine alpine lakes, deep gorges, steep granite cliffs, and dense forests. The dramatic changes in scenery make each day of the hike feel like a new adventure.
A True Test of Endurance
For experienced hikers, the GR20 offers a real test of endurance. With several days of difficult walking, often in extreme weather conditions, it requires strength, stamina, and careful planning. Each stage of the hike will push your limits, but the sense of accomplishment upon completing the trek is well worth the effort.
Best Time to Hike the GR20
The best time to hike the GR20 is during the summer months, from June to September. During this period, the weather is more stable, and the trail huts (or “refuges”) are open and staffed. However, the summer months are also the busiest, so you can expect to encounter other hikers on the trail.
If you prefer to avoid the crowds, consider hiking in late May or early October. While the weather can be less predictable during these months, the trail is much quieter. Keep in mind that snow can linger on the higher sections of the trail until late June, so plan your trip accordingly.
Stages of the GR20
The GR20 is typically divided into 15 stages, each representing one day of hiking. These stages vary in difficulty and length, with some sections taking as little as 4 hours to complete and others requiring up to 10 hours of strenuous walking.
Northern Section: Calenzana to Vizzavona
The northern half of the GR20, from Calenzana to Vizzavona, is known to be more challenging than the southern half. The terrain is steeper, and the ascents and descents are more frequent and grueling. This section includes some of the most dramatic scenery on the trail, such as the Cirque de la Solitude (which is now bypassed due to safety concerns), and the highest point on the GR20, Monte Cinto.
Southern Section: Vizzavona to Conca
The southern part of the trail, from Vizzavona to Conca, is less technical but still physically demanding. The path is more forgiving in terms of terrain, and the views become more lush and green as you approach the coast. Highlights of the southern section include the Bavella Needles, a series of towering rock spires that offer stunning vistas of the surrounding landscape.
Accommodations on the GR20
There are two primary accommodation options on the GR20: refuges (mountain huts) and camping. Both options provide basic amenities, but hikers should be prepared for rustic conditions.
Refuges
The refuges are simple shelters located along the trail. Most provide bunk beds, communal kitchens, and occasionally meals, but these amenities can vary from one refuge to the next. Reservations are recommended during the busy season, and it’s important to carry cash as many refuges do not accept credit cards.
Camping
If you prefer more solitude or flexibility, camping is another option. Most refuges have designated camping areas where you can pitch your tent. You can also wild camp along the trail, but it is essential to adhere to local regulations and respect the environment.
Essential Gear for Hiking the GR20
Given the difficulty of the GR20, having the right gear is crucial for a successful hike. Here’s a list of essential items you should bring:
- Sturdy hiking boots: The terrain is rocky and uneven, so good ankle support is necessary.
- Backpack: A durable, lightweight backpack with enough space for your gear (around 40-50 liters).
- Waterproof clothing: The weather can change rapidly, so it’s important to have waterproof and windproof layers.
- Trekking poles: These will help you navigate the steep ascents and descents.
- Sleeping bag: Even if you’re staying in refuges, you’ll need a sleeping bag as blankets are not always provided.
- First aid kit: Include items like blister pads, bandages, and any personal medications.
Physical Preparation for the GR20
The GR20 is not a trail for beginners. It requires a high level of fitness and experience in long-distance hiking. Before attempting the trail, it’s recommended that hikers engage in regular cardiovascular exercise, strength training, and practice hikes with a loaded backpack.
Cardio Training
Running, cycling, or swimming are excellent ways to build endurance and improve your cardiovascular fitness. Aim to train at least 3-4 times a week for several months leading up to your trip.
Strength Training
Hiking the GR20 involves a lot of steep climbs and descents, so leg strength is essential. Exercises like squats, lunges, and step-ups will help build the muscles needed to tackle the trail’s challenging terrain.
Practice Hikes
To get a feel for the trail, it’s a good idea to go on practice hikes with a loaded backpack. Gradually increase the distance and difficulty of your hikes to simulate the conditions you’ll encounter on the GR20.
Safety Considerations on the GR20
While the GR20 is incredibly rewarding, it can also be dangerous if you’re not properly prepared. Some sections of the trail are exposed and require scrambling over rocks or navigating narrow paths with steep drops. Make sure to check the weather forecast before setting out each day and be prepared to adjust your plans if conditions deteriorate.
It’s also a good idea to inform someone of your route and expected arrival times each day. Mobile phone reception is limited in many parts of the trail, so carry a map and compass and know how to use them.
Conclusion
The GR20 Corsica is not for the faint-hearted, but for those willing to put in the effort, it offers one of the most rewarding hiking experiences in the world. With its stunning scenery, challenging terrain, and sense of adventure, it’s no wonder that the GR20 has earned its reputation as Europe’s toughest trek. Whether you’re a seasoned hiker or someone looking for their next big challenge, the GR20 will leave you with unforgettable memories.
