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GR20 Corsica

France · Corsica

technical

Europe's toughest long-distance trail, crossing Corsica's wild interior from Calenzana to Conca.

⛰Trailhead:1,100m
🏔Summit:2,706m
📅Duration:16 days
🌍Country:France

Generating AI safety verdict…

Trailhead Conditions

Corsica, France · 1100m

Friday, November 6 at 11:29 AM

12°C

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

Today
13°/ 6°
Sat, Nov 7
11°/ 4°
Sun, Nov 8
11°/ 5°
Mon, Nov 9
14°/ 5°
Tue, Nov 10
14°/ 9°
Wed, Nov 11
16°/ 9°
Thu, Nov 12
12°/ 9°
Fri, Nov 13
12°/ 9°
Sat, Nov 14
14°/ 8°
Sun, Nov 15
13°/ 7°
Mon, Nov 16
7°/ 7°

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