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12 days Very challenging

The GR20 in 12 days

The schedule for fast hikers: Ortu – Haut-Asco via Carrozzu, Manganu – Onda via Petra Piana, then Onda – E Capannelle via Vizzavona.

184 km 114.3 mi11,250 m 36,909 ft ascent15.3 km / daynorth → southStart: Calenzana

Twelve days, with three doubled-up stages: Ortu di u Piobbu – Haut-Asco (12 km, 1,400 m of ascent), with a lunch stop at Carrozzu; Manganu – Onda via Petra Piana; and Onda – E Capannelle (24 km), passing through Vizzavona in the middle of the day. The south then follows the official pace, with the direct crossing from Usciolu to Asinau.

This itinerary is aimed at trained walkers who can string together days of 8 to 10 hours on technical terrain. The long Ciottulu di i Mori – Manganu stage (25 km) is still done in one go.

Day-by-day plan

DayLegDistanceAscentDescentWalking timeOvernight
Calenzana → Ortu di u Piobbu11.4 km1,420 m170 m5h30 – 6h30Refuge d'Ortu di u Piobbu
Ortu di u Piobbu → Haut-Asco
Lunch stop at the Carrozzu hut.
12.2 km1,400 m1,500 m7h45 – 9h15Haut-Asco
Haut-Asco → Tighjettu8.4 km1,150 m920 m5h45 – 6h45Tighjettu and Bergeries de Ballone
Tighjettu → Ciottulu di i Mori6.3 km650 m330 m3h – 3h30Ciottulu di i Mori
Ciottulu di i Mori → Manganu25.1 km710 m1,120 m7h15 – 8h30Refuge de Manganu
Manganu → L'Onda
Lunch stop at the Petra Piana hut.
18.3 km1,290 m1,440 m8h – 9h30Refuge de l'Onda
L'Onda → E Capannelle
Resupply in Vizzavona in the middle of the day.
24 km1,570 m1,410 m9h30 – 11hCapannelle
E Capannelle → Prati17.7 km900 m690 m5h30 – 6h30Refuge de Prati
Prati → Usciolu10.9 km620 m670 m4h – 4h45Refuge d'Usciolu
Usciolu → Asinau20.7 km850 m1,040 m6h30 – 7h45Refuge d'Asinau
Asinau → I Paliri15.3 km420 m930 m4h45 – 5h30Refuge d'I Paliri
I Paliri → Conca13.2 km270 m1,040 m4h – 4h45Conca
Total184 km11,250 m11,260 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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