The Canal du Midi is a 240 km long canal that in its time (late 17th century) was a great engineering achievement. It is one of the technologically most significant canals in the world: it uses lock staircases, reservoirs, aqueducts, dams, bridges, and tunnels. The largest work on the canal is the dam of Saint-FerréolThe canal is located in the south of France, connecting the Garonne River at Toulouse to the Étang de Thau on the Mediterranean. Four adjoining channels are also included.The orig