Marais de Lyarne – Port du Bec loop from Saint-Hilaire-de-Chaléons

Saint-Hilaire-De-Chaléons

Marais de Lyarne – Port du Bec loop from Saint-Hilaire-de-Chaléons

Moderate

3.7

(3)

riders

Marais de Lyarne – Port du Bec loop from Saint-Hilaire-de-Chaléons

04:42

115km

270m

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

Tips

Temporary access restrictions

Includes segments with temporary access restrictions.

After 53.7 km for 843 m

Open: • required permit (otherwise closed)

Waypoints

Start point

Train Station

Get Directions

31.6 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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34.6 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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35.2 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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53.7 km

Harbour landscapes in Vendée

Highlight • Other

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.

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59.6 km

Port du Bec

Highlight • Viewpoint

This small port, classified and protected since 1942, is located at the mouth of the Dain river. It is one of the most important oyster ports in Bouin.

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68.4 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 …

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82.2 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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101 km

Church of Chauvé

Highlight • Religious Site

Chauvé comes from the Brittonic “calleva” (wood).

During the Revolution, Chauvé was one of the first communes to revolt during the uprising on the night of March 9 to 10, …

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115 km

End point

Train Station

Way Types & Surfaces

Way Types

102 km

6.22 km

4.46 km

2.68 km

< 100 m

Surfaces

91.6 km

23.7 km

< 100 m

Elevation

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

Weather

Friday 23 October

17°C

12°C

98 %

Additional weather tips

It’s set to rain on your activity. Pack a waterproof jacket.

to get more detailed weather forecasts along your route

Comments

November 19, 2025,Cyclisme groupe 1 de Pornic vers les éoliennes de Bouin

A short, very windy ride 🌬🌬
Luckily, we're taking short turns at over 30 km/h into the wind; a rotation with 7 or 8 riders is quite technical 😏.
The worst part is when it's blowing slightly from the side and destabilizes the group with its gusts. It's dangerous and difficult to stay in line... I'm speaking for myself, of …

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January 28, 2026,Reprise avec le Groupe 1 de Pornic vers les éoliennes de Bouin Port du Bec 😍

This was my first ride back this morning after a week of recovery from my bad gravel crash.

I ended up going straight back into Group 1 (I had hesitated to ride with Group 2, the 28 km/h group). No regrets, as I managed to take turns at the front, including the one into the wind to climb the wind …

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October 8, 2024,Cyclisme sur route

Very flat circuit with a lot of wind. A few squalls to accompany us in Vendée made the average fall. I suffered a lot against the wind!!!

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November 20, 2024,Cyclisme sur route au départ de Pornic boucle éoliennes de Bouin

Good average this morning.
Luckily yesterday's storm had passed 🤪
Nevertheless a good pace, despite a new puncture, we rejoined group 2bis 😁

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