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16 days Challenging

The GR20 from south to north

Starting in Conca and finishing in Calenzana: begin with the gentler south so you arrive fit and ready for the alpine stages in the north.

184 km 114.3 mi11,290 m 37,041 ft ascent11.5 km / daysouth → northStart: Conca

Walking south → north lets you start with slightly less technical stages and save the best for last. You cross paths with hikers going the classic way rather than following them.

On the other hand, the first day starts with a long climb from Conca, and guidebook descriptions are written for the opposite direction. The Park publishes walking times for both directions on its official page.

Day-by-day plan

DayLegDistanceAscentDescentWalking timeOvernight
Conca → I Paliri13.2 km1,040 m280 m4h45 – 5h45Refuge d'I Paliri
I Paliri → Asinau15.3 km940 m430 m5h – 6hRefuge d'Asinau
Asinau → Plateau du Cuscionu9.9 km460 m590 m3h15 – 4hMatalza and Bergeries de Basseta
Plateau du Cuscionu → Usciolu10.9 km590 m240 m3h15 – 4hRefuge d'Usciolu
Usciolu → Prati10.9 km680 m620 m4h15 – 4h45Refuge de Prati
Prati → E Capannelle17.7 km680 m900 m5h30 – 6h30Capannelle
E Capannelle → Vizzavona14.5 km320 m950 m4h15 – 5hVizzavona
Vizzavona → L'Onda9.5 km1,100 m610 m5h15 – 6hRefuge de l'Onda
L'Onda → Petra Piana10 km890 m480 m4h30 – 5h15Refuge de Petra Piana
Petra Piana → Manganu8.4 km550 m810 m3h45 – 4h30Refuge de Manganu
Manganu → Ciottulu di i Mori25.1 km1,110 m700 m7h30 – 8h45Ciottulu di i Mori
Ciottulu di i Mori → Tighjettu6.3 km350 m670 m2h45 – 3h15Tighjettu and Bergeries de Ballone
Tighjettu → Haut-Asco8.4 km910 m1,140 m5h30 – 6h15Haut-Asco
Haut-Asco → Carrozzu4.9 km570 m760 m3h30 – 4hRefuge de Carrozzu
Carrozzu → Ortu di u Piobbu7.3 km930 m640 m4h30 – 5h15Refuge d'Ortu di u Piobbu
Ortu di u Piobbu → Calenzana11.4 km170 m1,430 m4h – 4h45Calenzana
Total184 km11,290 m11,250 m

Distances and ascent calculated on the waymarked main route; “≈” marks a day on a variant (estimated values). Walking times according to the DIN 33466 standard, without breaks.

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The stages in detail

1 Calenzana Refuge d'Ortu di u Piobbu
0 m250 m500 m750 m1,000 m1,250 m1,500 m1,750 m0 km5 km10 km
Elevation profile: from 281 m to 1,574 m over 11.6 km.
11.6 km1,450 m6h30
2 Refuge d'Ortu di u Piobbu Refuge de Carrozzu
1,000 m1,250 m1,500 m1,750 m2,000 m2,250 m0 km2 km4 km6 km
Elevation profile: from 1,270 m to 2,044 m over 7.1 km.
7 km620 m4h45
3 Refuge de Carrozzu Haut-Asco
1,000 m1,250 m1,500 m1,750 m2,000 m2,250 m0 km1 km2 km3 km4 km5 km
Elevation profile: from 1,237 m to 1,978 m over 5 km.
5 km760 m4h15
4 Haut-Asco Refuge de Tighjettu
1,250 m1,500 m1,750 m2,000 m2,250 m2,500 m2,750 m0 km2 km4 km6 km8 km
Elevation profile: from 1,427 m to 2,574 m over 8.3 km.
8.3 km1,150 m6h45
5 Refuge de Tighjettu Refuge de Ciottulu di i Mori
1,250 m1,500 m1,750 m2,000 m2,250 m0 km2 km4 km6 km
Elevation profile: from 1,383 m to 2,044 m over 6.4 km.
6.4 km650 m3h45
6 Refuge de Ciottulu di i Mori Refuge de Manganu
1,250 m1,500 m1,750 m2,000 m2,250 m0 km10 km20 km
Elevation profile: from 1,340 m to 2,012 m over 25.1 km.
25.1 km700 m8h30
7 Refuge de Manganu Refuge de Petra Piana
1,500 m1,750 m2,000 m2,250 m0 km2 km4 km6 km8 km
Elevation profile: from 1,595 m to 2,208 m over 8.4 km.
8.3 km800 m4h45
8 Refuge de Petra Piana Refuge de l'Onda
750 m1,000 m1,250 m1,500 m1,750 m2,000 m0 km2 km4 km6 km8 km
Elevation profile: from 959 m to 1,855 m over 9.9 km.
9.9 km470 m4h30
9 Refuge de l'Onda Vizzavona
750 m1,000 m1,250 m1,500 m1,750 m2,000 m2,250 m0 km2 km4 km6 km8 km
Elevation profile: from 959 m to 2,064 m over 9.7 km.
9.7 km630 m5h30
10 Vizzavona E Capannelle
750 m1,000 m1,250 m1,500 m1,750 m0 km5 km10 km
Elevation profile: from 944 m to 1,634 m over 14.4 km.
14.4 km960 m5h30
11 E Capannelle Refuge de Prati
1,000 m1,250 m1,500 m1,750 m2,000 m0 km5 km10 km15 km
Elevation profile: from 1,283 m to 1,861 m over 17.7 km.
17.7 km880 m6h30
12 Refuge de Prati Refuge d'Usciolu
1,400 m1,500 m1,600 m1,700 m1,800 m1,900 m2,000 m2,100 m0 km5 km10 km
Elevation profile: from 1,502 m to 1,982 m over 10.9 km.
10.9 km610 m4h45
13 Refuge d'Usciolu Plateau du Cuscionu (Matalza)
1,250 m1,500 m1,750 m2,000 m0 km5 km10 km
Elevation profile: from 1,309 m to 1,812 m over 10.9 km.
10.9 km230 m3h45
14 Plateau du Cuscionu (Matalza) Refuge d'Asinau
1,250 m1,500 m1,750 m2,000 m2,250 m0 km2 km4 km6 km8 km
Elevation profile: from 1,412 m to 2,017 m over 10 km.
9.9 km590 m4h15
15 Refuge d'Asinau Refuge d'I Paliri
750 m1,000 m1,250 m1,500 m1,750 m0 km5 km10 km15 km
Elevation profile: from 1,018 m to 1,535 m over 15.2 km.
15.2 km400 m5h15
16 Refuge d'I Paliri Conca
0 m250 m500 m750 m1,000 m1,250 m0 km5 km10 km
Elevation profile: from 256 m to 1,053 m over 13.2 km.
13.2 km250 m4h45

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