The Canal du Midi in France's sunny southern Languedoc is a UNESCO world heritage site. Its 240km route meanders through lush, beautiful countryside rich in history and culture, linking Toulouse and Sete. It is perfect cycling country with flat, car-free paths for a comfortable pedal as well as access to tougher excursions in the nearby hills and mountains.When he started building the canal in 1666, Pierre Paul Riquet had a vision of linking the economies of the Atlantic and Mediterranean boasts. In the process he also created one of the world's most picturesque waterways. The prosperity the region enjoyed is reflected in the grand homes, houses and chateaux that grace the water's edge.The route, which tunnels through hillsides, and crosses rivers and tracks, also represents a considerable feat of engineering.Includes excursions to Cathar strongholds, the canal's water source in the Montagne Noire and the lagoons and marshes in the Aude and Orb deltaWith practical information on accommodation, cycle shops, markets and local festivals.