Serpent of the Ocean – Carrelets de La Grande Ville loop from Pornic

Serpent of the Ocean – Carrelets de La Grande Ville loop from Pornic

Moderate

5.0

(2)

riders

Serpent of the Ocean – Carrelets de La Grande Ville loop from Pornic

04:47

78.1km

350m

Gravel riding

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

Last updated: August 24, 2026

Waypoints

Start point

Train Station

Get Directions

9.52 km

Menhir de la Souchais

Archaeological Site

25.0 km

Serpent of the Ocean

Highlight • Beach

This 130-meter-long beast with its 135 steel vertebrae is an outdoor work of art created by Chinese artist Huang Yong Ping as part of the Estuaire contemporary exhibition. It appears with the rhythm of the tides.

Translated by Google •

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25.3 km

Saint-Nazaire Bridge

Highlight • Bridge

The longest bridge in France! And who, in reality, has never been baptized 😁. My cycle lane is rolling and wide enough, but, be careful, the danger comes mainly from debris on the side of the road (screws, plastic, metal and plastic parts...), so be careful!! Or, use the shuttle available (part of the year) located at the port of Penhoët, St Nazaire side or in the car park at the foot of the bridge, St Brevin side

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25.7 km

Loire estuary at the Pont de Saint-Nazaire

Highlight • Bridge

The Saint-Nazaire Bridge (French: Pont de Saint-Nazaire) is a cable-stayed bridge crossing the River Loire between Saint-Nazaire and Saint-Brevin-les-Pins on the west coast of France. The bridge is located at the mouth of the Loire and the Atlantic Ocean. The bridge, built in 1974, was opened to traffic on October 18, 1975 and was then the cable-stayed bridge with the world's largest span (Wikipedia).

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26.2 km

Les Carrelets de Saint-Brévin

Highlight • Other

27.7 km

Carrelets de La Grande Ville

Highlight • Other

La Grande Ville is a hamlet of Saint-Brevin along the Loire estuary, with a long beach characterized by the traditional fishing piers extending far into the water. Here a parking area with restrooms and picnic table is a trailhead for exploring the practice while taking a break along the waterfront biketrail.

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28.6 km

Fishermen's huts

Highlight • Other

Here are a large number of these "fishermen's huts". During high tide, plaice and shrimp are fished here.

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52.6 km

Chapelle Saint-Vital

Highlight • Religious Site

This charming chapel, nestled in lush countryside, makes an intriguing backdrop to your itinerary and a welcome excuse to take a break and use the nearby picnic tables.

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73.1 km

Haute Perche Canal

Highlight • Other

The Haute Perche Canal is actually a river that flows into the ocean at the port of Pornic. The promenade is well-maintained and very pleasant. It's easy to explore on foot or by bike.
Many hikers on weekends.

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77.5 km

Canal de la Haute Perche

Lake

78.1 km

End point

Train Station

Way Types & Surfaces

Way Types

35.9 km

23.8 km

7.33 km

6.42 km

4.13 km

507 m

138 m

Surfaces

27.4 km

20.6 km

16.6 km

12.8 km

528 m

163 m

Elevation

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

Highest point (50 m)

Lowest point (0 m)

Weather

Sunday 1 November

13°C

4°C

0 %

Additional weather tips

Expect light wind and shifting conditions.

to get more detailed weather forecasts along your route

Comments

November 1, 2024,Boucle Serpent de l'Océan – Étang des Gatineaux au départ de Saint-Brevin-les-Pins

Excellent circuit 👍😍
The first half I regretted not having a gravel bike for the beautiful straight paths 😜 it's certain that I could have increased my average 😁
Nevertheless from Corsept for the second part.....fortunately I was riding a mountain bike 🤪 very technical part in the mud paths linked wouhaaaa !!!!
I put some explicit photos 😉😁

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June 24, 2025,Sortie Gravel vers le serpent 🐍 de mer, retour par la Chapelle Saint Vital 😍

Good, varied gravel route.
Road, gravel paths, rutted trails, mountain bike trails, and sandy paths.
Ultimately, it was very challenging given my low average speed despite the fairly fast rolling sections.

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