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Road cycling routes

Lake au Duc – View of Lac au Duc loop from Questembert

Road cycling routes

Lake au Duc – View of Lac au Duc loop from Questembert

Moderate

31

riders

Lake au Duc – View of Lac au Duc loop from Questembert

04:57

114km

670m

Road cycling

Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride. The starting point of the route is accessible with public transport.

Last updated: August 16, 2026

Tips

Includes a segment in which cycling is not permitted

After 59.2 km for 176 m

Waypoints

A

Start point

Train Station

1

25.0 km

Nantes–Brest Canal - Oust Quay

Highlight • Other

Domaine du Roc campsite

Translated by Google •

Tip by

2

25.1 km

Le Roc-Saint-André

Highlight • Settlement

Quaint village with an ancient church on a hill overlooking a bend in the river & Canal de Nantes à Brest.

Tip by

3

25.8 km

Former railway bridge over the Nantes–Brest Canal

Highlight • Bridge

Nice crossing of two long-distance cycle routes: the Vélodyssée coastal route which runs along the Nantes to Brest canal and the track between Saint-Malo and Rhuys which takes the old railway bridge.

Translated by Google •

Tip by

4

36.1 km

Lac au Duc

Highlight • Lake

Created by monks in the 12th century, Lac au Duc is the largest of Brittany's inland lakes. Its 250 hectares extend between Ploërmel, Taupont and Loyat.

Measuring approximately 5.5 km …

Translated by Google •

Tip by

5

36.8 km

Lake au Duc

Highlight • Lake

Picnic tables available

Translated by Google •

Tip by

39.4 km

Lac au Duc

Lake

7

41.7 km

Le Lac au Duc

Highlight • Lake

8

41.8 km

View of Lac au Duc

Highlight • Lake

It is one of the largest lakes in Brittany with a length of 5.5 kilometers and a width of between 500 and 900 meters depending on the location. Lake Ploërmel …

Translated by Google •

Tip by

59.4 km

Plan d'eau de la Folie

Lake

10

104 km

Questembert–Mauron Greenway

Highlight • Cycleway

On the route of an old railway

Translated by Google •

Tip by

B

114 km

End point

Train Station

Way Types & Surfaces

Way Types

95.7 km

11.7 km

3.27 km

1.60 km

877 m

394 m

< 100 m

Surfaces

107 km

3.38 km

1.57 km

1.21 km

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Elevation

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

Highest point (100 m)

Lowest point (20 m)

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Weather

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Today

Tuesday 13 October

19°C

9°C

0 %

Additional weather tips

Max wind speed: 12.0 km/h

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