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Canal du Midi and Canal de Garonne combined are called "Canal des deux Mers" ("Two Seas Canal"). Together, they connect the Atlantic Ocean with Mediterranean Sea. Next photo shows Canal du Midi (Pont-canal de l'Orb).
Next photo shows Canal de Garonne (Pont-Canal d'Agen).
The itinerary route (west to east) is as follows:
- Gironde estuary (the entrance is from Atlantic Ocean).
- Garonne River (at Castets-en-Dorthe the river connects to the Garonne Canal).
- Garonne Canal ends in Toulouse, where starts Canal du Midi.
- Canal du Midi (Toulouse to Etang de Thau), where connects to Canal du Rhone a Sete (flowing into Mediterranean Sea).
Canal des deux Mers has length of approx 433 km (269 ml), and a total of 118 locks.
- Canal du Midi has length of 240 km (150 ml) and a total of 65 locks. Its construction started in 1666, and was completed in 1681.
- Canal de Garonne has length of 193 km (120 ml) and a total of 53 locks. Its construction started in 1838, and was completed in 1856.