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Roc Lock – Écluse de l'Océan loop from Castelnaudary

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Bike touring routes & trails

Roc Lock – Écluse de l'Océan loop from Castelnaudary

Hard

4.3

(60)

414

riders

Roc Lock – Écluse de l'Océan loop from Castelnaudary

08:01

104km

220m

Cycling

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: June 20, 2026

Waypoints

Start point

Train Station

Get Directions

7.09 km

Roc Lock

Highlight • Other

The Écluse du Roc was built around 1670 and is 57 km from Toulouse at 189 m above sea level.

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13.1 km

The Écluse de l'Océan is an architecturally beautifully built single-chamber lock. It marks the highest point of the Canal du Midi (Col de Naurouze or Seuil de Lauragais: the watershed between the Atlantic and the Mediterranean).

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26.5 km

Grand Bassin in Castelnaudary

Highlight • Other

The Grand Bassin in Castelnaudary is the largest open body of water along the Canal du Midi and covers approximately 7 hectares. Once a site of important economic activity, it …

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30.6 km

Vivier Lock

Highlight • Monument

The Vivier lock is actually a series of three locks, otherwise known as a ladder of locks. It was built in 1674, 68.7 kilometers from Toulouse and 154 meters above …

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34.2 km

Criminal lock

Highlight • Religious Site

Despite its ominous name, this lock is quite magnificent. Built around 1674, this single-chamber lock sits 137 meters above sea level.

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65.2 km

Canal du Midi

Highlight • Other

Nice singletrack along the Canal du Midi in Carcassonne

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84.5 km

Canal du Midi

Highlight • Other

excellent surface, few tree roots

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104 km

View of Castelnaudary

Highlight • Viewpoint

Beautiful view of the small old town, here the Canal du Midi is a large basin.

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104 km

End point

Train Station

Way Types & Surfaces

Way Types

70.8 km

12.0 km

8.83 km

6.83 km

5.54 km

Surfaces

53.2 km

33.7 km

16.9 km

274 m

< 100 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (190 m)

Lowest point (110 m)

Weather

Sunday 21 June

37°C

20°C

0 %

Additional weather tips

Max wind speed: 22.0 km/h

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Comments

May 19, 2023,Canal du midi entre ami étape 2

For this 2nd stage, some of us struggled to finish (military camp activity in the morning) between a puncture and a broken chain. I made quite a few stops and accompanied the latecomers.

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April 10, 2025,Sortie à vélo

Not a very smooth route, if the weather is wet it's not even worth it, prefer a mountain bike, all the trees were cut down!!! Better to wait a good ten years to do the Canal du Midi.
PS, as of April 10th all the campsites are closed.

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March 25, 2023,2. Frankreichtour: Carcassonne-En Pascot (Lagarde)

Relatively fresh with a few aches and pains, we left shortly before 9am. The first kilometers on the Canal du Midi were quite nice. The search for a supermarket took us on a 7 km national road odyssey. Also without success. Back at the Canal du Midi it was either big gravel or totally bumpy and against the wind. It …

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Roc Lock – Écluse de l'Océan loop from Castelnaudary

Roc Lock

Écluse de l'Océan

Grand Bassin in Castelnaudary

Vivier Lock

Criminal lock

Canal du Midi

Canal du Midi

View of Castelnaudary

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