Different GR20 stages

If you do one stage per day, it will take you about 16 days to complete the trail. It starts in Calenzana, situated in the North West, then runs down diagonally across the island to Conca, in the South East.  The midway point is Vizzavona, a large forest, with easy access by road or train and a good selection of different accommodations dotted about.

It is difficult to determine the best moment to do the GR, the season is short and the weather is fickle.  Do not underestimate the wide ranging conditions you might encounter, it is a high mountain walk.  This beautiful, sunny Mediterranean island is known for its ‘micro climates’, the conditions can be harsh and the weather changes fast from valley to valley.  You can be walking in relentless, burning heat, followed by thick fog, pelting hail and rain in the same day.

The nature of the terrain changes constantly, it is particularly varied. Parts of it are high and airy with sheer rock that gives a lunar aspect. Parts of it involve walking on large blocks of granite, or scrabbling on loose shingle. There are long exposed ridge walks but you will also find  green spongy pastures, woodland, lakes, forests and grazing land.  The contrast is really very surprising.

GR20 Stage by Stage North - South

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Calenzana to Ortu di u Piobbu

This is the first stage of the GR20. The distance is 12km (7.5 miles) Total ascent 1550m. Total descent 235m. Effective walking time 7hrs.

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Ortu di u Piobbu to Carrozzu

Stage two of the GR20. The distance is 8km (5miles) Total ascent 750m. Total descent 1050m. Effective walking time 6h30.

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Carrozzu to Haut Asco

Stage three of the GR20. The distance is 6km (3.75 miles) Total ascent 860m. Total descent 710m. Effective walking time 5h30hrs.

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Haut Asco to Vallone

Stage four of the GR20. The distance is 9km (5.5 miles) Total ascent 1250m. Total descent 1230m. Effective walking time 9hrs.

Arriving in Ciottulu
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Vallone to Castel di Vergio

Stage five of the GR20. The distance is 15km (9.5 miles) Total ascent 850m. Total descent 870m. Effective walking time 6hrs.

Lake Nino
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Castel di Vergio to Manganu

Stage six of the GR20. The distance is 17km (10.5miles) Total ascent 670m. Total descent 475m. Effective walking time 6hrs.

There, it is the southern Corsica !
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Manganu to Petra Piana

Stage seven of the GR20. The distance is 10km (6 miles) Total ascent 980m. Total descent 740m. Effective walking time 7hrs.

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Petra Piana to Onda

Stage eight of the GR20. The distance is 8km (5 miles) Total ascent 390m. Total descent 800m. Effective walking time 4h30.

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L'Onda to Vizzavona

Stage nine of the GR20. The distance is 13km (8 miles) Total ascent 990m. Total descent 1500m. Effective walking time 7h30.

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Vizzavona to Capanelle

Stage ten of the GR20. The distance is 16km (10 miles) Total ascent 1000m. Total descent 335m. Effective walking time 5h30.

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Capanelle to Col de Verde

Stage eleven of the GR20. The distance is 14km (8.75 miles) Total ascent 320m. Total descent 620m. Effective walking time 4h30.

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Col de Verde to Usciolu

Stage twelve of the GR20. The distance is 16km (10 miles) Total ascent 1290m. Total descent 830m. Effective walking time 7h30.

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Usciolu to Crocce

Stage thirteen of the GR20. The distance is 14km (8.75 miles) Total ascent 340m. Total descent 640m. Effective walking time 5h30.

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Crocce to Asinau

Stage fourteen of the GR20. The distance is 9km (5.5 miles) Total ascent 665m. Total descent 545m. Effective walking time 4h15.

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Asinau to Bavella

Stage fifteen of the GR20. The distance is 8km (5miles) Total ascent (550m). Total descent 865m. Effective walking time 4h15.

Arrivee gr20
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Bavella to Conca

Stage sixteen of the GR20. The distance is 19km. Total ascent (700m) Total descent is 1670m. Effective walking time 7hrs.

GR20 Petra Piana
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Ortu di u Piobbiu Refuge

Alt 1520m. This is the first accommodation you will come across on the GR20 north when setting out from Calenzana.

GR20 : refuge station Asco Stagnu
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Haut Asco Refuge

Alt 1422m. This is the third accommodation you will come across on the GR20 north when setting out from Calenzana.

GR20 Tighjettu
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Tighjettu Refuge

Tighjettu 1683m is the fourth refuge you will come across on the GR20 north when setting out from Calenzana.

Ciottulu Refuge
Ciottulu Refuge

Alt 1991m altitude. This is the fifth accommodation you will come across on the GR20 north when setting out from Calenzana.

GR20 : Manganu Refuge
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Manganu Refuge

Alt 1600m. This is the sixth park refuge that you will come to on the GR20 north when setting out from Calenzana.

GR20 Petra Piana
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Petra Piana Refuge

Alt 1842m. This is the seventh park refuge that you will come to on the GR20 north when setting out from Calenzana.

Onda Refuge
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Onda Refuge

Alt 1422m. This is the eighth park refuge that you will come to on the GR20 north when setting out from Calenzana.

Vizzavona : train station, hotel et refuge
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Vizzavona

This is the ninth step that you will come to on the GR20 north when setting out from Calenzana.

GR20 Capanelle
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Capanelle

Alt 1586m. This is a private gite and camping area is enthusiastically managed by Roger Philippe and Laure Maurizi they are a brother and sister team.

Prati Refuge
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Prati Refuge

Alt 1820m. This is the XXXX accommodation that you will come to on the GR20 when setting out from Calenzana.

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Col de Verde

Alt 1289m. This is the XXXX accommodation that you will come to on the GR20 when setting out from Calenzana. It is a private gite, that has road access.

Usciolu Refuge
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Usciolu Refuge

Alt 1750m. This is the XXXX accommodation that you will come to on the GR20 when setting out from Calenzana.

Croce
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Croci

Alt 155Om. This is the XXXth accommodation along the way when setting out from Calenzana.

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Col de Bavella

Alt 1218m. This is the XXXX accommodation that you will come to on the GR20 when setting out from Calenzana.

Paliri
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Paliri Refuge

Alt 1055m. This is the last one on the trail GR20 !

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Asinau Refuge
GR20 : Carrozzu refuge
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Carrozzu Refuge

Alt 1270m. This is the second refuge on the GR20 north when setting out from Calenzana.