The Canal du Midi by bike – from Toulouse to the Mediterranean
Cycling the Canal du Midi – Toulouse, Castelnaudary and cassoulet, Carcassonne and Cathar country, the Malpas Tunnel, the Fonserannes locks and Agde.
- Best time to visitMay – June and September – October
- Suggested stay8 days
- Getting therefly to Toulouse (connecting), home from Montpellier
The Canal du Midi – the “Canal of Two Seas” – is a remarkable 17th-century feat of engineering. Together with the Canal de Garonne it links the Atlantic Ocean to the Mediterranean, so ships no longer had to sail around Spain past lurking pirates. Leonardo da Vinci had dreamed of the idea, but the canal was only built in 1666–1681 by engineer Pierre-Paul Riquet. The biggest challenge wasn’t the digging but keeping it supplied with water all year – solved with feeder channels bringing water from the Montagne Noire. The canal is about 240 km long, with dozens of locks, aqueducts over rivers and even a tunnel, and it’s a UNESCO World Heritage Site. Along both banks, shaded by plane trees, run cycling and walking paths – some of the best cycling in France.
Eight-day itinerary
Day 1. Toulouse. The “Pink City”, with the Basilica of Saint-Sernin – the largest Romanesque church in Europe – the Capitole square and the banks of the Garonne.
Day 2. Toulouse – Castelnaudary (~60 km). Across the Lauragais farmland, past duck and goose farms, to Castelnaudary – the gateway to the canal and the capital of cassoulet (a stew of white beans, duck and sausage).
Day 3. Castelnaudary – Carcassonne (~45 km). You enter Cathar country – followers of a faith close to Bulgaria’s Bogomils, crushed by a crusade in the 13th century. Carcassonne is the largest surviving medieval fortress in Europe, with 3 km of double walls and 52 towers (UNESCO).
Day 4. Carcassonne. A day to explore La Cité and the lower town.
Day 5. Carcassonne – Homps / Le Somail (~50 km). Minervois vineyards and small harbours with boats for hire.
Day 6. Towards Béziers (~50 km). The Malpas Tunnel – the world’s first navigable canal tunnel – and the nine Fonserannes locks, a “staircase” that lifts or lowers boats 21 m.
Day 7. Béziers – Agde (~25 km). To Agde, the “black pearl of the Mediterranean”, built of volcanic stone, and the beaches nearby.
Day 8. Train from Agde to Montpellier and fly home.
Practical tips
- The path is mostly flat but sandy and rooty in places – a hybrid or touring bike is best.
- Companies can move your luggage between hotels.
- You can hire a licence-free boat and cover part of the route on the water.
- Try the wines of Minervois, Corbières and Languedoc.
Photos
Updated: November 2026
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