GR20 Corsica
France · Corsica
Europe's toughest long-distance trail, crossing Corsica's wild interior from Calenzana to Conca.
Generating AI safety verdict…
Trailhead Conditions
Corsica, France · 1100m
Friday, November 6 at 11:29 AM
Feels like 12°C
Slight showers
Humidity
77%
Wind
9 km/h WSW
Gusts
9 km/h
Pressure
1018 hPa
Dew Point
7°C
Cloud Cover
38.3%
Visibility
10.0 km
Precip
0.3 mm
48-Hour Forecast
14-Day Forecast
Is GR20 Corsica safe to hike right now?
The AI safety verdict above is updated every 4 hours using live weather data from MET Norway at both the trailhead (1,100m) and the summit (2,706m). A GO verdict means current conditions are suitable for the trek. CAUTION means proceed with awareness of specific risk factors shown above. NO-GO means conditions are currently inadvisable — check back after the weather window passes.
How difficult is GR20 Corsica?
GR20 Corsica is rated technical. It requires technical mountaineering skills including crampon use, rope work, and experience with exposed ridge lines. Hire a certified mountain guide. The typical completion time is 16 days for a full expedition.
What is the elevation of GR20 Corsica?
The trailhead starts at 1,100 metres above sea level in Corsica, France. The summit or highest point reaches 2,706 metres — a net elevation gain of 1,606 metres.
What gear do I need for GR20 Corsica?
The packing list in the AI verdict above is tailored to the current forecast. As a baseline for GR20 Corsica in France: crampons, ice axe, harness, helmet, ropes, and a certified mountain guide are required in addition to standard alpine kit.
Weather data: MET Norway Locationforecast 2.0 (CC BY 4.0) · AI verdicts by Anthropic Claude