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

Last updated: December 11, 2025

Download GPX

Save

Move start point

Edit route

Navigate

Send to Phone

Waypoints

Start point

Train Station

Get Directions

17.0 km

Guerlédan Lock - Nantes to Brest Canal

Highlight • Monument

Last locks before reaching the barrage

Tip by

20.7 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!

Translated by Google •

Tip by

24.5 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.

Tip by

25.5 km

Canal de Nantes à Brest

Highlight • Other

In sections between locks the Blavet River is almost left to it's natural wild state, though the invasive plants choking its flow probably can encroach faster due to the slower, regulated flow speed

Tip by

26.5 km

Aquinian Lock on the Nantes–Brest Canal

Highlight • Structure

The historic canal and the trail share the course of the Blavet, which was made navigable by a series of locks like this one next to the small community of Aquinian

Tip by

31.0 km

Porzo Lock on the Nantes-Brest Canal

Highlight • Structure

33.9 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.

Translated by Google •

Tip by

36.1 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 …

Tip by

38.8 km

End point

Train Station

Way Types & Surfaces

Way Types

17.4 km

13.1 km

5.38 km

2.44 km

481 m

Surfaces

19.6 km

17.0 km

1.73 km

481 m

Elevation

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

Weather

Today

Thursday 5 March

12°C

8°C

89 %

Additional weather tips

Max wind speed: 18.0 km/h

to get more detailed weather forecasts along your route

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

Nearby routes

Moderate

4.4

Blavet Valley and Hennebont Loop

02:52h

40.6km

360m

Hard

The V8 along the Blavet — loop from Pontivy

03:07h

49.4km

510m

Moderate

5.0

Mellionnec Bike Trail

01:20h

21.3km

220m

Moderate

4.8

540

Cadoret Lock – Josselin Castle loop from Saint-Gérand

04:54h

80.6km

260m

Moderate

4.6

458

Canal de Nantes à Brest – Cascade Lock loop from Neulliac

02:18h

37.0km

150m

Hard

4.7

235

Cascade Lock – Bon-Repos Abbey loop from Séglien

05:09h

81.6km

570m

Hard

4.9

173

Bon-Repos Abbey – Lock No. 138 of Bon Repos loop from Bon Repos sur Blavet

03:25h

52.9km

350m

Moderate

4.7

263

Ècluse de Kervégan – Ville Pérot lock loop from Saint-Maudan

02:30h

38.5km

210m

Hard

4.9

181

Josselin Castle – Montertelot Lock loop from Pleugriffet

07:16h

118km

500m

Hard

4.7

234

Chemin de halage – Blavet River loop from St-Nicolas des Eaux

04:58h

84.4km

520m

Hard

4.9

205

Cascade Lock – Cadoret Lock loop from Loudéac

07:31h

125km

580m

Moderate

4.7

167

Cascade Lock – Ville Pérot lock loop from Saint-Caradec

04:01h

65.0km

450m

Canal de Nantes à Brest – Cascade Lock loop from Pontivy

Guerlédan Lock - Nantes to Brest Canal

Poulhibet lock - Canal de Nantes à Brest

Stumo lock on the Nantes-Brest canal

Canal de Nantes à Brest

Aquinian Lock on the Nantes–Brest Canal

Porzo Lock on the Nantes-Brest Canal

Guernal lock on the Nantes-Brest canal

Cascade Lock

Nearby routes

Sign up or log in to keep exploring this route

We value your privacy ⛰️

We value your privacy ⛰️