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Routes
Road cycling routes
France
Pays de la Loire
Saint-Nazaire
La Bernerie-En-Retz

Port du Bec – Port du Collet loop from La Bernerie-en-Retz

Routes
Road cycling routes
France
Pays de la Loire
Saint-Nazaire
La Bernerie-En-Retz

Port du Bec – Port du Collet loop from La Bernerie-en-Retz

Moderate

4.7

(3)

42

riders

Port du Bec – Port du Collet loop from La Bernerie-en-Retz

02:58

72.1km

130m

Road cycling

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

Last updated: March 19, 2026

Tips

Temporary access restrictions

Includes segments with temporary access restrictions.

After 49.9 km for 843 m

Open: • required permit (otherwise closed)

Waypoints

A

Start point

Train Station

Get Directions

1

5.54 km

Chapel of Prigny

Highlight • Religious Site

Prigny, is actually the old village of Moutiers-en-Retz, and this chapel was the first church of Moutiers, because until the end of the Middle Ages, Moutiers were only a simple suburb of Prigny. Located on the former shore of the Gulf of Machecoul, Prigny was then a fortified town overlooking the Breton marshes.
This building is now called a chapel by the inhabitants, simply because of its small size. Dating from the 11th century, the chapel of Prigny is a squat building in the primitive Romanesque style.
It is currently the subject of a restoration program.

Translated by Google •

Tip by

2

28.3 km

Nice little church

Highlight • Other

3

37.9 km

Lost time

Highlight • Other

If you are looking for it, your quest ends here!

Translated by Google •

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4

41.8 km

La Petillière salt marsh

Highlight • Other

Authentic salt marsh on the route du Gois, which offers the possibility of observing the work of a salt worker, if you go there according to the seasons, or thanks to the guided tours. Direct sale of salt and salicornia.

Translated by Google •

Tip by

5

44.9 km

Port du Bec

Highlight • Viewpoint

Amazing fishing and pleasure port, nicknamed the small Chinese port

Translated by Google •

Tip by

6

50.9 km

Beautiful landscape around the Passage du Gois (Vendée; France). Not only the passage itself is worth a journey, but also the small harbors in the vicinity.

Translated by Google •

Tip by

7

53.8 km

Notre-Dame Church in Bouin and Town Centre

Highlight • Religious Site

Slightly massive in appearance and built in the 14th century, the Bouin church dominates the marsh with its silhouette and can be seen from afar. Formerly belonging to the Marches de Bretagne, the town of Bouin offers a different architecture with its stone houses.

Translated by Google •

Tip by

8

62.5 km

Port du Collet

Highlight • Other

Water management is essential for life in the swamp, it is managed by the SAH. (Syndicate of the Southern Loire Hydraulic Development). 51 municipalities are affected by the regulation of these waters by the Marais Breton Vendée or Marô. There are still 3 main locks in Port la Roche and 2 in Fresne.

Translated by Google •

Tip by

B

72.1 km

End point

Train Station

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Way Types & Surfaces

Way Types

64.6 km

4.18 km

1.97 km

1.16 km

115 m

< 100 m

< 100 m

Surfaces

58.1 km

13.7 km

153 m

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Elevation

Elevation

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

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Weather

Powered by Foreca

Monday 25 May

29°C

20°C

0 %

Additional weather tips

Max wind speed: 13.0 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.

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