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GR20 Stage 9 – Alpine Variant

By François · updated in June 202506/2025My rating

Key facts about the hike

Difficulty
Hard Hikes are rated from very easy to very hard: my difficulty scale
Duration
7h Estimated time, short breaks included (photos, water, snacks), picnic not included: how it is calculated
Distance
12km
Elevation gain
1,090m
Elevation loss
1,580 m
Type of route
One way
Maximum altitude
2,390 m
Vertiginous Five levels, depending on how exposed the route is: the levels in detail
Highly
Marked
Yes
Popularity
High
Region
Center
Start point
42.15295, 9.07362
Activity
Trek - GR20

Hike overview

The ninth stage of the GR20 north-south trail connects the Onda (1,430 m) and Vizzavona mountain huts. Hikers can choose between two routes: the classic route through the Agnone Valley or this alpine variant via the summit of Monte d'Oro (2,389 m).

While the standard route descends gently toward the Cascades des Anglais, this alternative route involves a technical climb up one of Corsica's most beautiful peaks. After Bocca Muratello, the route branches off to climb toward the ridges, crossing a spectacular mineral landscape and rewarding hikers with an exceptional panorama. A long descent through scree and then through the Vizzavona forest leads to the village of the same name, marking the end of the GR20 North.

Map and elevation profile of the hike

GR20 Stage 9 – Alpine Variant

Description and difficulties of the hike

This alpine variant is one of the most technical stages of the GR20 and is intended exclusively for experienced hikers. The trail begins as the classic route does, with a steady but not particularly difficult climb of about two hours to the Muratello ridge (2,110 m). After the fork just after the pass, the yellow markings guide you across the mountainside, then up a steep incline to Bocca di Porco (2,159 m).

The most challenging section is at the summit. The final ascent of Monte d'Oro is very technical and often requires to scramble. The trail crosses unstable scree, runs along exposed ridges, and includes a short chimney that requires some easy climbing just before the summit. The yellow markings, sometimes supplemented by cairns, require constant vigilance, as they are not always clearly visible.

The descent to Vizzavona involves about 1,500 meters of elevation loss and is particularly challenging. It begins with the Scala, a steep couloir of unstable scree and rocks where snowfields can persist until July. This very steep section requires great caution, especially since fatigue sets in after climbing to the summit. The trail then crosses the ruins of the Pozzatelli sheepfolds before gradually entering the Vizzavona Forest. There, the descent becomes easier.

Important: This variant should only be attempted in good weather without strong winds or the risk of storms. It requires sure footing and good orientation skills.

What you'll love

  • An exceptional panorama from the summit: The central and isolated position of Monte d'Oro makes it an exceptional natural observatory over a large part of Corsica, from the east and west coasts to the highest peaks of the island, including the Rotondo massif.
  • The isolated, uncrowded summit, offering a beautiful, high-mountain experience far from the crowds of the classic GR20.
  • The descent through the Vizzavona Forest, composed of laricio pines and beech trees, offers welcome coolness after the climb.

Practical information

Arrival in Vizzavona

Congratulations! You have reached Vizzavona, which marks the end of the nine stages of the GR20 North and your return to civilization. The village offers several lodging options in addition to the traditional stopover lodge. However, don't expect a highly developed town. Vizzavona consists of only a few scattered houses, and the lodge's grocery store is the only place to stock up on essentials.

Onda refuge
Onda refuge
View from the Muratello pass
View from the Muratello pass
Muratello pass
Muratello pass
Lake Oro to the north
Lake Oro to the north
Ascent to the summit of Monte d'Oro
Ascent to the summit of Monte d'Oro
Some scrambling to the summit
Some scrambling to the summit
North panorama from the summit of Monte d'Oro
North panorama from the summit of Monte d'Oro
Monte d'Oro summit cross
Monte d'Oro summit cross
Bocognano valley
Bocognano valley
Panorama to the east from Monte d'Oro, with the Mediterranean in the background
Panorama to the east from Monte d'Oro, with the Mediterranean in the background
Paglia Orba from Monte d'Oro
Paglia Orba from Monte d'Oro
View to the north-west
View to the north-west
Bocognano
Bocognano
GR20 - Etape 9
GR20 - Stage 9
Descent to Vizzavona
Descent to Vizzavona
Vizzavona Territorial Forest
Vizzavona Territorial Forest

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Printed from www.horizonrando.fr/en/corsica/gr20-stage-9-alpine-variant/