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Road cycling routes

Pays de la Loire

Pont-Saint-Martin

Trejet port – Lake Grand-Lieu loop from Pont-Saint-Martin

Road cycling routes

Pays de la Loire

Pont-Saint-Martin

Trejet port – Lake Grand-Lieu loop from Pont-Saint-Martin

Easy

5.0

(2)

8

riders

Trejet port – Lake Grand-Lieu loop from Pont-Saint-Martin

01:54

44.5km

120m

Road cycling

Easy road ride. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: November 1, 2026

Tips

The surface for a segment of your route may not be suitable

Some segments of your route comprise a surface that may not be suitable for your chosen sport.

After 12.4 km for 87 m

Waypoints

A

Start point

Bus stop

1

12.5 km

Tour du lac de grand lieu

Highlight • Lake

2

18.3 km

Trejet port

Highlight • Viewpoint

Nice little port from Trejet to La Chevrolière.
Picnic tables, shaded lawn and possibility of fishing.
Very pleasant for a refueling stop.

Translated by Google •

Tip by

3

18.3 km

Le Port des Roches

Highlight • Structure

Small port of Tréjet which gives access by flat boat to Lake Grand-Lieu from the banks of the Ognon.

Translated by Google •

Tip by

4

23.7 km

Lake Grand-Lieu

Highlight • Lake

Beautiful view of the lake of Grand-Lieu

Translated by Google •

Tip by

5

24.0 km

Grand-Lieu Lake Observatory

Highlight • Viewpoint

Located in the village of Passay in La Chevrolière, the Grand-Lieu Lake Ornithological Observatory is a soundproofed observation hut nestled in the heart of the Regional Nature Reserve, offering a unique viewpoint over the lake and its exceptional wildlife.

Showing Translation

Tip by

B

44.5 km

End point

Bus stop

Way Types & Surfaces

Way Types

34.4 km

4.91 km

4.30 km

893 m

< 100 m

Surfaces

30.1 km

14.2 km

< 100 m

< 100 m

< 100 m

< 100 m

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Elevation

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Weather

Powered by Foreca

Friday 6 November

15°C

3°C

0 %

Additional weather tips

Max wind speed: 11.0 km/h

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