Routes

Planner

Features

Updates

App

Get the App

Paudais lock – Château de la Groulais loop from La Galernais

Paudais lock – Château de la Groulais loop from La Galernais

Moderate

5.0

(1)

riders

Paudais lock – Château de la Groulais loop from La Galernais

03:58

69.1km

380m

Gravel riding

Moderate gravel 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: May 18, 2026

Waypoints

Start point

Bus stop

Get Directions

15.0 km

Barel Lock

Highlight • Structure

14th lock from Nantes. This one is separated from the spillway by an island. There's also a beautiful stone bridge.

Translated by Google •

Tip by

15.2 km

Whenever we drove through one of these "garden locks" that had been beautifully decorated, planted and the grass cut to golf course level, our hearts would melt.
The lock keeper's houses are almost always specially decorated.

Translated by Google •

Tip by

15.8 km

Bivouac area with toilets and water

Highlight • Other

Good spot to refuel. Toilets and water, which is rare despite the announcements of signs and tourist offices.

Translated by Google •

Tip by

31.6 km

Paudais lock

Highlight • Other

The twelfth lock you will see when leaving Nantes

Translated by Google •

Tip by

33.5 km

Château de la Groulais

Highlight • Castle

The Château de la Groulais was the largest fortress in the region at the time and was the home of several personalities, including Olivier V de Clisson and Marie Bonaparte, etc.

Translated by Google •

Tip by

34.4 km

Blain 44

Highlight • Other

34.4 km

Port of Blain

Highlight • Rest Area

It is a fairly active port on the Nantes-Brest Canal, with a capacity for up to 30 pleasure craft and 3 barges. Bars, restaurants, and public restrooms are available.

Translated by Google •

Tip by

36.8 km

Bois de Beaumont

Forest

62.1 km

Mabille Valley Lake

Highlight • Other

The Lac de la Vallée Mabille, or Lac de Savenay, is a beautiful artificial reservoir that is worth a detour. By bike, you can easily go around the southern part (south of the road) by a wide and well-maintained wooded path. On the other hand, the northern part, wilder and quite rugged, is more for hiking than cycling. Crossing at the dam can be done using a footbridge.

Translated by Google •

Tip by

69.1 km

End point

Bus stop

Way Types & Surfaces

Way Types

34.6 km

25.5 km

3.72 km

3.23 km

1.58 km

482 m

Surfaces

21.1 km

20.3 km

19.7 km

7.51 km

648 m

Elevation

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

Highest point (90 m)

Lowest point (10 m)

Weather

Sunday 24 May

33°C

18°C

0 %

Additional weather tips

Max wind speed: 12.0 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.

Navigate

Send to Phone

Save

Edit route

Download GPX

Move start point

Embed on a website

Report an Issue

Nearby routes

Hard

3.7

Social Ride of Monkey Bike Bar

07:36h

73.9km

330m

Hard

Gravel ride around Blain

07:20h

70.2km

300m

Hard

4.5

Canal de Nantes à Brest – Tindière Lock loop from Rond-Point de la Belle Etoile

07:36h

153km

320m

Easy

4.8

Port of Blain – Lock 11 — La Prée loop from Blain

01:49h

37.1km

50m

Easy

4.5

Port of Blain – Paudais lock loop from Calvaire

01:55h

35.8km

110m

Moderate

4.6

115

La Chézine – Cens Trail in Orvault loop from Sautron

01:49h

27.9km

200m

Hard

4.4

108

Tindière Lock – Canal de Nantes à Brest loop from La Gréhandière

05:24h

91.8km

350m

Moderate

4.5

Haie Pacoret Lock – Rabinière lock loop from Le Gâvre

03:58h

78.4km

170m

Moderate

5.0

Canal de Nantes à Brest – Magpie Island loop from Sévérac

03:03h

59.3km

190m

Moderate

3.0

Quay at Sucé-sur-Erdre – Sucé sur Erdre bridge and port loop from Grandchamp-des-Fontaines

03:09h

49.3km

280m

Moderate

4.6

Port Lavigne Sluice – Port Lavigne loop from Le Pellerin

02:41h

39.7km

240m

Hard

Port of Nort-sur-Erdre – Sucé sur Erdre bridge and port loop from Grandchamp-des-Fontaines

03:36h

58.7km

290m

Paudais lock – Château de la Groulais loop from La Galernais

Barel Lock

Pretty Lock Gardens

Bivouac area with toilets and water

Paudais lock

Château de la Groulais

Blain 44

Port of Blain

Mabille Valley Lake

Nearby routes

Sign up or log in to keep exploring this route

We value your privacy ⛰️

We value your privacy ⛰️