Corsica is a mountain range that happens to be an island — and that's exactly what makes it the most demanding, most rewarding cycling destination in the Mediterranean. The GT20, Corsica's Grande Traversée à Vélo, climbs from sea level to over 1,200 metres between coastal cliffs and ancient chestnut forests. Strong riders treat the full traverse as a bucket-list ride. Everyone else can pick a chapter — north, centre, south, or the wild Cap Corse peninsula — and discover Corsica at their own pace.
This guide walks you through the GT20 and the alternative road and trekking routes that make Corsica work for riders from sportive cyclists to first-time touring families. We'll show you which itinerary fits which kind of trip.
Cycling Corsica: the lay of the land
Corsica is just 183 km long and 83 km wide, but inside that small frame is some of the most vertical terrain in Europe. Mount Cinto rises above 2,700 metres; mountain passes between 800 and 1,400 m are routine on any cross-island route. The coastline alternates between sandy bays and granite cliffs — the famous calanques of Piana and the white limestone of Bonifacio. The interior is sparsely populated, with medieval villages perched on ridges and forests of Laricio pines that grow nowhere else.
The cycling experience is unlike France or Italy: longer climbs, quieter roads, fewer towns, more raw nature. Bring legs, bring patience, and bring a camera.
The GT20: Corsica's Grande Traversée à Vélo
The GT20 (Grande Traversée 20, after Corsica's department number) is the cycling cousin of the legendary GR20 hiking trail. It runs the length of the island from Bastia in the north to Bonifacio in the south, divided into three natural chapters that can be ridden together or separately.
The full challenge: Bastia to Bonifacio
The complete GT20 by road bike — six riding days, 586 km, over 11,000 metres of climbing — is one of the toughest, most beautiful long-distance road rides in Europe. This is for fit, experienced cyclists who want the whole island in one trip.
Centre chapter: Calvi to Corte
The heart of Corsica beats in the mountains between Calvi and Corte — ancient Laricio pine forests, the red granite gorges of Spelunca, mountain villages where time has paused. Shorter and more manageable than the full traverse, this central stage works well as a stand-alone week.
South chapter: Corte to Bonifacio
The southern leg of the GT20 is Corsica at its most dramatic — long passes through chestnut forests, medieval hilltop villages on granite ridges, and the finale on Bonifacio's white cliffs gazing across the strait to Sardinia.
Beyond the GT20: north Corsica road bike loops
Some riders want the climbing and the scenery without committing to the full island traverse. The north of Corsica delivers exactly that, with the wild Cap Corse peninsula and the Castagniccia mountains in a single demanding loop.
The west-coast spectacle
If you want to ride the same roads as the 2013 Tour de France stage, the route from Bastia south along the western coastline is the answer — the calanques of Piana, the Gulf of Porto, and the long sweep into Ajaccio.
The grand tour of the north
For riders who want a full immersion in the north — coast, mountains, and inland villages — a two-week loop from Bastia covers the lot.
Cap Corse: tower to tower
The Cap Corse peninsula is Corsica's wild northern finger — a narrow strip of land where mountains tumble straight into the sea, Genoese watchtowers stand on every headland, and tiny fishing harbours punctuate the coast. The loop around the cape is one of the most underrated cycling routes in Europe: seven days, around 135 km, and roughly 2,000 metres of climbing. Long enough to feel like a proper trip, short enough that you have time to swim every afternoon.
When to ride Corsica
The cycling season runs from late April through October. May, June and September are ideal: warm but not yet hot, mountain passes clear of any lingering snow, sea warm enough for a swim. July and August get hot (often 32°C+) and busy on the coast, though the mountain stages stay manageable. Spring sees the maquis — Corsica's wild scrubland — in full bloom, with rosemary, thyme and cistus flowering on every slope.
Practical tips for your Corsica bike trip
Bike choice. The GT20 is best on a road bike — most of the route is on paved mountain roads. For mixed itineraries with gravel sections, a gravel bike or sturdy trekking bike works well. E-bikes are increasingly available; they're a great equaliser on the long passes.
Getting there. Ferries run from Nice, Marseille, Toulon and Livorno to Bastia, Ajaccio, Calvi and Île-Rousse. Flights connect Bastia and Ajaccio to most major European cities.
Daily distance. Plan for 50 to 90 km per day on the GT20 and similar routes, with 1,000-1,800 m of climbing. The terrain is what shapes the day, not the kilometres.
Hotels. Accommodation in the interior is family-run and limited — book well ahead. Coastal towns have more options.
Ready for Corsica?
Whether you want the full GT20 or a single perfect week in the north, Corsica has a route that fits. Browse the full cycling tour catalogue or speak with a consultant — we'll match the climb profile, the comfort level, and the dates to what you need.
