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Port du Collet – Marais de Lyarne loop from Port-Saint-Père - Saint-Mars

Port du Collet – Marais de Lyarne loop from Port-Saint-Père - Saint-Mars

Moderate

5.0

(1)

riders

Port du Collet – Marais de Lyarne loop from Port-Saint-Père - Saint-Mars

02:31

60.5km

230m

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: August 26, 2026

Waypoints

Start point

Train Station

Get Directions

366 m

Le Tenu

Highlight • River

Beautiful views from the bridge over the Acheneau River and the Château de Saint-Mars de Coutais.

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28.4 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 …

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29.0 km

Port of Collet

Highlight • Other

For centuries, the port of Collet was the main point of departure for the export of salt produced in the salt marshes of the coast. At the end of the …

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32.2 km

Marais de Lyarne

Highlight • Other

The Lyarne marsh, Natura 2000 site, is a former salt marsh with dunes and reedbeds. It is a haven of peace for birds and horses.

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34.2 km

Pré Vincent Beach

Highlight • Beach

Facing south, Pré-Vincent beach is cut by numerous groynes of wood or rocks. At low tide, the sea retreats several kilometers and gives way to the famous mud from the …

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36.4 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 …

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45.2 km

Superb fresco

Highlight • Other

49.6 km

The Calvary of Saint-Hilaire-de-Chaléons

Highlight • Other

60.5 km

End point

Train Station

Way Types & Surfaces

Way Types

46.5 km

8.57 km

3.57 km

1.61 km

161 m

109 m

< 100 m

Surfaces

55.1 km

4.97 km

344 m

161 m

Elevation

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

Weather

Wednesday 2 September

26°C

14°C

12 %

Additional weather tips

Max wind speed: 17.0 km/h

to get more detailed weather forecasts along your route

Comments

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Port du Collet – Marais de Lyarne loop from Port-Saint-Père - Saint-Mars

Le Tenu

Port du Collet

Port of Collet

Marais de Lyarne

Pré Vincent Beach

Chapel of Prigny

Superb fresco

The Calvary of Saint-Hilaire-de-Chaléons

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