Trekking the GR20 Corsica
The High Level Route: Guidebook and map booklet
Trekking the GR20 Corsica
The High Level Route: Guidebook and map booklet
Guidebook to Corsica's GR20, one of Europe's classic treks. The most challenging of the GR long-distance routes, the trail crosses remote mountain terrain and involves plenty of hands-on scrambling. Includes information about accommodation, refreshments and facilities and a separate booklet showing the entire route on IGN 1:25,000 maps.A guidebook to trekking the GR20 Corsica, widely considered to be the most difficult of Europe’s GR long-distance routes. The 190km (118 mile) trail from Calinzana to Conca traverses the island’s mountainous heart and calls for both fitness and experience. Crossing remote and rugged mountainous terrain, there is plenty of hands-on scrambling and, although it is possible to stay under a roof every night, it is recommended that trekkers carry backpacking kit.
The GR20 is presented in 16 stages of 5 to 18km (3–11 miles), with low-level options provided for a number of the stages. It takes around a fortnight to complete. Also included are a handful of excursions to climb neighbouring peaks and link routes for those wishing to join or leave the trail.
- Clear route description with 1:50,000 maps and elevation profiles
- Includes separate map booklet featuring 1:25,000 IGN mapping
- GPX files available for download
- Route summary and facilities summary tables help you plan your itinerary
- With accommodation listings
Printed book
A guidebook with detailed route descriptions, stage breakdowns, accommodation listings, profiles and maps - everything you need on the trail.
ISBN
9781786310675
Availability
Published
Published
1 Jun 2022
Reprinted
1 Jul 2025
Edition
Fifth
Pages
304
Size
17.20 x 11.60 x 1.70cm
Weight
420g
eBook
The complete digital edition of the guidebook, with full route descriptions, accommodation listings, profiles and maps, ready to use on any device.
Map key
Overview map
Route summary table
Introduction
Geology
Brief history
Getting to Corsica
Getting around Corsica
Getting to the GR20
When to trek
How to trek
Maps
Mountain weather
Path conditions
Mountain rescue
What to take
Services along the route
Food, drink and fuel
Language
Currency
Using this guide
Plants and wildlife on Corsica
Maquis
Trees
Flowers
Wildlife
The GR20
Stage 1A Calinzana to Refuge d’Ortu di u Piobbu (high-level)
Stage 1B Calinzana to Refuge d’Ortu di u Piobbu (low-level)
Excursion Ascent of Monte Corona from Refuge d’Ortu di u Piobbu
Stage 2A Refuge d’Ortu di u Piobbu to Refuge de Carozzu (high-level)
Stage 2B Refuge d’Ortu di u Piobbu to Refuge de Carozzu (low-level)
Stage 3 Refuge de Carozzu to Ascu Stagnu
Stage 4 Ascu Stagnu to Auberge U Vallone
Link route Auberge U Vallone to Albertacce
Stage 5 Auberge U Vallone to Hôtel Castel di Vergio
Excursion Ascent of Paglia Orba from Refuge de Ciotullu di I Mori
Stage 6 Hôtel Castel di Vergio to Refuge de Manganu
Link route Bergerie de Vaccaghja to Corti
Link route Refuge de Manganu to Soccia
Stage 7 Refuge de Manganu to Refuge de Petra Piana
Link route Brèche de Capitellu or Bocca a Soglia to Bergeries de Grottelle
Excursion Ascent of Monte Ritondu from Refuge de Petra Piana
Stage 8A Refuge de Petra Piana to Refuge de l’Onda (low-level)
Stage 8B Refuge de Petra Piana to Refuge de l’Onda (high-level)
Link route Bergerie de Tolla to Tattone and Vizzavona
Stage 9A Refuge de l’Onda to Vizzavona (low-level)
Stage 9B Refuge de l’Onda to Vizzavona (high-level)
Stage 10 Vizzavona to Bergeries d’E Capanelle
Link route La Foce to Bocca Palmentu
Stage 11A Bergeries d’E Capanelle to Bocca di Verdi (low-level)
Stage 11B Bergeries d’E Capanelle to Bocca di Verdi (high-level)
Stage 12 Bocca di Verdi to Refuge d’Usciolu
Link route Refuge d’Usciolu to Cuzzà
Stage 13 Refuge d’Usciolu to Refuge de Matalza
Link route Tignosellu to Zicavu
Link route Zicavu to Refuge de Matalza
Stage 14 Refuge de Matalza to Refuge d’Asinau
Alt Stage 13/14 Refuge d’Usciolu to Refuge d’Asinau (variant)
Stage 15A Refuge d’Asinau to Bavedda (low-level)
Stage 15B Refuge d’Asinau to Bavedda (high-level)
Stage 16 Bavedda to Conca
Appendix A Facilities along the route (Calinzana to Conca)
Appendix B Facilities along the route (Conca to Calinzana)
Appendix C Accommodation list
Appendix D Basic language notes
Appendix E Useful contacts
Appendix F The Cirque de la Solitude
Seasons
Possible June to mid-October; June or September is ideal, with July and August being the hottest and busiest months. Snow and ice make the trail exceptionally dangerous.
Centres
Calinzana, Ascu Stagnu, Vizzavona, Conca. Detours can be made to Corti, Cuzzà and Zicavu.
Difficulty
The GR20 is a challenging walk involving plenty of hands-on scrambling, through isolated mountain terrain. Take note of weather conditions and avoid lingering snow and ice early in the season, or thunderstorms at any time. The GR20 is for experienced, fit walkers prepared to carry backpacking kit.
Must See
Great mountain views; optional ascents of Monte Cinto and Paglia Orba; optional detour to the ancient mountain capital of Corti
February 2024
Link Route to Bergeries de Grotelle
A bridge in the Restonica valley called the Pont de Tragone was destroyed by Storm Ciaran in 2023. The bridge lies halfway between Corte and the Bergeries de Grottelle. The loss of the bridge means that anyone following the link route between the GR20 at Brèche de Capitellu or Bocca a Soglia, down to the Bergeries de Grottelle, won't be able to access any transport down the valley to Corte.
Until the bridge is replaced, it is unlikely that any of the little bars or cafés at the Bergeries de Grottelle will be operating. However, any trekkers who simply want to deviate from the main route and enjoy the spectacular scenery around Lac de Capitellu and Lac de Melo can do so, then rejoin the GR20 afterwards.
November 2023
Alternative Stage 13/14
This used to be the 'main' route of the GR20, but several years ago a longer route was marked in order to offer trekkers places to find accommodation, food and drink. This stage was 'closed', but it remained popular with trekkers, so it was waymarked afresh and has seen regular use for many years.
It has now been 'closed' again, due to the loss of a footbridge spanning the Ruisseau de Furcinchesu. Apart from the waymarks having been covered in grey paint between Bocca di l'Agnonu and Monte Alcudina, the route itself can still be walked if anyone chooses to do so, and the Ruisseau de Furchinchesu is easily forded in normal conditions of flow. Clearly, the park authorities would prefer trekkers to follow the 'main' waymarked route.
June 2023
Booking accommodation
It is now mandatory to book and pay for all stays at PRNC refuges prior to arrival via their website (whether you wish to stay in the dormitory, a hired tent or even in your own tent). See https://www.pnr.corsica/?intro... for details.
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