Punta La Marmora (Fonni approach)
Hors Catégorie18.5 km
Distance
980 m
Elevation Gain
5.3%
Average Gradient
12%
Max Gradient
The approach to Sardinia's highest point (1,834m) via Fonni — the island's highest village at 1,000m — is the most demanding cycling challenge the island offers. The paved road climbs from Fonni through the upper Gennargentu massif on a surface that progressively deteriorates above 1,400m, transitioning from sealed road to compacted gravel for the final 3km to the summit area. The effort is substantial: nearly 1,000m of climbing over 18.5km with ramps of 10-12% on the middle section. The reward is proportionate — complete solitude on the island's roof, panoramic views across Sardinia's interior plateau, and the knowledge that virtually no other cycling destination in Italy offers such wilderness above 1,500m. Golden eagles are regularly sighted on the upper flanks of the Gennargentu.
Pro Tip
The final section to the summit requires a gravel-capable bike or at minimum 28mm tyres. In pure road bike terms, Fonni itself at 1,000m is the natural turnaround — the 18km descent back to the valley floor delivers excellent technical engagement. Check weather carefully: the Gennargentu generates its own weather and afternoon thunderstorms develop rapidly in spring and autumn.
Part of
Cycling in Sardinia