Character
Short, sharp and physically intense. Stages are not extreme in kilometres but technical terrain, rocky descents and chains can significantly slow the pace.
GR Routes
GR20 Corsica Traverse
The Corsican classic with sharp ridges, chains and mountain huts. Short on kilometres, big on experience.
Overview
GR20 is an iconic Corsica traverse for experienced hikers wanting technical terrain, long days and dramatic mountain scenery. Trailio rates it as an expert trek primarily due to weather, elevation and the need for careful hut planning.
- Distance
- 180 km
- Time
- 12-16 days
- Difficulty
- Expert
- Total elevation gain
- 11,000 m
Route & profile
Quick orientation of the route line, start, end and elevation profile.
Elevation profileHighest 1,842 m a.s.l. · Refuge de Petra Piana
Korsika, Francie
180 km · 15 stages · ↑ 11,000 m
Elevation data for stage points is indicative, derived from Copernicus DEM GLO-90 after geocoding stage locations via OSM; problematic points are manually verified from map or trail sources. Verify against the specific GPX/map before your trip.
Map data: OpenStreetMap contributors, displayed via Waymarked Trails.
Planning
Refugios with half-board are the main item. Book online well in advance — popular huts fill weeks ahead.
The best window is June to September. June may have snow on the higher sections, August is hot and busy, September often offers the best compromise.
What to expect
Who it's for
Experienced mountain hikers who have already completed a multi-day trek with a pack and are comfortable with exposed sections, refugio sleeping and changeable weather.
Suggested pace
12–16 days is a typical pace. A faster itinerary only makes sense with a light pack and confidence on rocky terrain.
Logistics
The start in Calenzana and end in Conca both require a combination of local transport, taxis or shuttle services. Book overnight accommodation in high season in advance; water and food are not uniformly available every day.
Resupply & permits
Resupply
Resupply on the route is limited — basic food and snacks available at selected refugios (Haut Asco, Vizzavona, Bavella) but choice is small and prices high. Vizzavona (approximately mid-route) has train connections to Ajaccio and Bastia — the ideal resupply point. Recommended: carry food for 2–3 days and replenish progressively.
Permits & regulations
No entry permits required. Nights in PNRC-managed refugios require online booking — no reservation means no guaranteed place. Camping only in designated zones near refugios; wild camping in the national park is prohibited.
Why go
- One of the most iconic European mountain treks.
- A combination of sharp ridges, lakes, rock and Corsican atmosphere.
- A strong sense of accomplishment without needing a month off.
Watch out for
- Don't underestimate the technical descents and cumulative fatigue in the second half.
- Weather in the mountains changes fast; thunderstorms and fog significantly complicate navigation.
- Check official rules for camping and refugio reservations before departure.
Sources
Frequently asked questions
When is the best time for Corsica Traverse?
The best window is June to September. June may have snow on the higher sections, August is hot and busy, September often offers the best compromise.
How hard is Corsica Traverse?
Corsica Traverse is rated as Expert. Short, sharp and physically intense. Stages are not extreme in kilometres but technical terrain, rocky descents and chains can significantly slow the pace.
How many days does Corsica Traverse take?
Corsica Traverse usually takes 12–16 days. 12–16 days is a typical pace. A faster itinerary only makes sense with a light pack and confidence on rocky terrain.
Do I need a permit for Corsica Traverse?
No entry permits required. Nights in PNRC-managed refugios require online booking — no reservation means no guaranteed place. Camping only in designated zones near refugios; wild camping in the national park is prohibited.
What about resupply on Corsica Traverse?
Resupply on the route is limited — basic food and snacks available at selected refugios (Haut Asco, Vizzavona, Bavella) but choice is small and prices high. Vizzavona (approximately mid-route) has train connections to Ajaccio and Bastia — the ideal resupply point. Recommended: carry food for 2–3 days and replenish progressively.
Similar treks
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Photos from trekkers
Real shots from the trail by people who walked it — coming soon.