Cadoret Lock – Cascade Lock loop from Saint-Gonnery

Bike touring routes & trails

Cadoret Lock – Cascade Lock loop from Saint-Gonnery

Hard

4.8

(31)

239

riders

Cadoret Lock – Cascade Lock loop from Saint-Gonnery

06:13

103km

450m

Cycling

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

Last updated: August 25, 2026

Tips

Includes short out-and-back sections

Your route doubles back at waypoints. If this isn’t intentional, adjust those waypoints’ positions.

After 66.4 km for 173 m

After 80.3 km for 21 m

Waypoints

Start point

Bus stop

Get Directions

22.4 km

Cadoret Lock

Highlight • Structure

Beautiful lock on the Nantes-Brest canal

Translated by Google •

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26.2 km

La Tertraie Lock

Highlight • Structure

Saint-Mélec chapel to see a little further north

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56.7 km

Locks 79 to 87 - Around Saint-Gérand

Highlight (Segment) • Other

Sequence of nine locks, seven of which are very close to each other. Boat traffic must have been very slow on this section…

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66.5 km

Pontivy Castle

Highlight • Castle

The Château de Pontivy, or Château des Rohan, was built between the middle of the 15th century and the beginning of the 16th century for and by the Viscounts of Rohan.

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68.7 km

Cascade Lock

Highlight • Bridge

Just before arriving in Pontivy the river Blavet crashes down a wide cascade, while the canal is channelled left through a lock. Pedestrians and bikers can cross the narrow metal …

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70.9 km

Guernal lock on the Nantes-Brest canal

Highlight • Other

The Guernal lock is located in the town of Neulliac. It was built around the 1800s and is accompanied by several buildings (houses, stores, bridges over locks) whose restoration has not been completed.

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80.3 km

Stumo lock on the Nantes-Brest canal

Highlight • Other

The locks at this location with the keeper's house midstream were probably also serving as a mill to harness the water power from the main Blavet river channel.

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84.0 km

Poulhibet lock - Canal de Nantes à Brest

Highlight • Other

NB: This lock is equipped with public dry toilets and a mechanical repair station for self-service bicycles, pump, tools, frame rack, etc. In addition, the beverage dispenser also contains spare inner tubes!

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103 km

End point

Bus stop

Way Types & Surfaces

Way Types

65.2 km

16.7 km

14.2 km

3.70 km

3.34 km

Surfaces

58.6 km

24.4 km

16.2 km

3.55 km

182 m

Elevation

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

Highest point (150 m)

Lowest point (40 m)

Weather

Monday 26 October

16°C

7°C

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Comments

April 25, 2025,Day 3 - Mur de Bretagne - Josselin - done. 44 miles.

Day 3 - Mur de Bretagne - Josselin - done. 44 miles.

Theme for the day… Minor disaster #2 encountered. Challenge accepted and overcome.

Today was very similar to yesterday in terms of scenery and setting. We continued along the canal for most of the day. There was some variety however. Sometimes we had the canal on our right, and …