Lake Grand-Lieu – Vallon de la Chaussée loop from Rezé - Pont-Rousseau

Lake Grand-Lieu – Vallon de la Chaussée loop from Rezé - Pont-Rousseau

Moderate

3.9

(41)

159

riders

Lake Grand-Lieu – Vallon de la Chaussée loop from Rezé - Pont-Rousseau

04:46

77.1km

240m

Gravel riding

Moderate gravel ride. Good fitness required. Mostly paved surfaces. The route includes a crossing by ferry. The starting point of the route is accessible with public transport.

Last updated: September 26, 2026

This route includes a ferry crossing

Tips

Includes a ferry crossing

Check ferry timetable.

After 66.4 km for 44 m

Waypoints

Start point

Train Station

Get Directions

11.4 km

Lake path between Bouaye and Saint Aignan de Grand Lieu

Highlight (Segment) • Trail

Shaded walking path, accessible to all, along the marshes of Lake Gd Lieu.
At the end, Coté St Aignan, you absolutely must continue to the equally unmissable site of "Pierre …

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21.6 km

Window over Lake Grand-Lieu

Highlight • Other

The lake is a natural site and an ornithological reserve and its access is very limited to the public. There are not so many views on this one. You can find them on the lacdegrandlieu.com website

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24.0 km

Grand-Lieu Lake Nature Reserve

Highlight • Other

Superb walk along the lake

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42.3 km

South of Lac de Grand-Lieu

Highlight • Lake

simple in summer but muddy outside the hot season.

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57.4 km

Lake Grand-Lieu

Highlight • Lake

Beautiful view of the lake of Grand-Lieu

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60.2 km

Vallon de la Chaussée

Highlight • Other

Hiking circuit, accessible by bike, along the Chaussée stream. Very kind.

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66.4 km

Le Martipontain - Ferry

Highlight • Bridge

Make your outing a bit unique by crossing the river "L'Ognon" aboard the Martipontain. A barge that allows you to cross to the other side by pulling on the chain …

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77.1 km

End point

Train Station

Way Types & Surfaces

Way Types

27.8 km

23.1 km

13.0 km

8.21 km

4.84 km

121 m

< 100 m

Surfaces

32.0 km

23.6 km

20.8 km

353 m

223 m

172 m

Elevation

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

Weather

Sunday 25 October

18°C

8°C

25 %

Additional weather tips

Expect light wind and shifting conditions.

to get more detailed weather forecasts along your route

Comments

May 14, 2023,Tour du lac de grandlieu

Magnificent course, good mix between path and road (just what you need to rest). On the other hand, a few hard passages on a 32mm road tire in May 2023. There were real quagmires in the marshes with mud up to the ankles. There are also a few passages where you cross flooded paths while rolling among the crayfish, it's …

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