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Bike touring routes & trails
France
Pays de la Loire
Nantes
Port-Saint-Père

Tour of Lac de Grand-Lieu: Port-Saint-Père Loop

Easy

4.3

(4)

16

riders

Tour of Lac de Grand-Lieu: Port-Saint-Père Loop

02:00

32.3km

130m

Cycling

Cycle the easy 20.1-mile (32.3 km) Tour of Lac de Grand-Lieu: Port-Saint-Père Loop through marshes, vineyards, and the protected Lac de Gran

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

Get Directions

1

1.93 km

Saint-Léger Church

Highlight • Religious Site

Clearly not the most beautiful church in the region, but there are toilets, and therefore water, and bike racks on the square. Thank you to the municipality of Saint-Léger-les-Vignes.

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2

6.26 km

The Acheneau

Highlight • River

A place on the bridge overlooking the Acheneau river. The river is 30 km long. An interesting point is that this watercourse has such a slight slope that its course …

Translated by Google •

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3

14.3 km

Gravel Path Between D61 and La Berderie

Highlight (Segment) • Trail

Well rolling and shaded gravel path, on the V101, linking the D61 to La Berderie.

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4

25.8 km

We fell in love with this late 19th century church, whose 67-meter-high bell tower overlooks the country of Retz

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Tip by

B

32.3 km

End point

Parking

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Way Types & Surfaces

Way Types

22.1 km

4.01 km

3.04 km

2.69 km

415 m

< 100 m

< 100 m

Surfaces

17.6 km

11.0 km

3.45 km

308 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

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Friday 22 May

32°C

15°C

0 %

Additional weather tips

Max wind speed: 16.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

How long does it take to cycle the Port-Saint-Père Loop?

This easy touring bicycle loop is approximately 32.3 km long and typically takes around 2 hours to complete. This duration is an estimate and can vary based on your cycling speed and how often you stop to enjoy the scenery.

Is the Port-Saint-Père Loop suitable for beginners?

Yes, this loop is rated as 'easy' and is suitable for all fitness levels. It features mostly paved surfaces, making it a great option for beginners or those looking for a relaxed ride.

What is the terrain like on this cycling route?

The route offers a diverse terrain, primarily consisting of paved roads and agricultural paths. While many sections are paved, you may encounter some gravel paths or unpaved tracks, particularly between D61 and La Berderie, which could add a slight challenge for certain bike types.

Where can I park to start the Port-Saint-Père cycling loop?

While the exact starting point with dedicated parking isn't specified, Port-Saint-Père is the designated start/end point for this loop. You can typically find parking within the village, often near public amenities or local points of interest.

What kind of scenery can I expect along the route?

You'll experience a variety of picturesque landscapes, including marshes, vineyards (especially Muscadet), open countryside, and charming traditional villages. The route explores the unique ecosystem surrounding Lac de Grand-Lieu, which is France's largest natural plain lake and a significant ornithological site.

Are there any specific points of interest or landmarks on the loop?

Yes, the route passes by several interesting spots. You can see the Saint-Léger Church and the Notre-Dame Church, Sainte-Pazanne. You'll also cycle alongside The Acheneau river and traverse a notable Gravel Path Between D61 and La Berderie.

What is the best time of year to cycle the Tour of Lac de Grand-Lieu: Port-Saint-Père Loop?

The best time to cycle this route is generally during spring and autumn when the weather is mild. However, it's important to note that the lake's water levels fluctuate significantly between winter and summer, which can affect the surrounding marshlands and views. Specific variants of the route are sometimes provided to ensure continuous access throughout the year.

Do I need any permits or pay an entrance fee to cycle around Lac de Grand-Lieu?

Lac de Grand-Lieu is a classified natural reserve (Réserve Naturelle Régionale du Lac de Grand-Lieu). While cycling on designated public paths typically doesn't require a permit or entrance fee, it's crucial to respect all local regulations and signage within the reserve to protect its exceptional biodiversity. Some segments, particularly those part of the GR de Pays, might be prohibited for bikes.

Is the Port-Saint-Père cycling loop dog-friendly?

While the general area is popular for outdoor activities, specific rules for dogs on cycling routes within the Réserve Naturelle Régionale du Lac de Grand-Lieu can vary. It's best to keep dogs on a leash, especially in natural reserve areas, and always clean up after them. Check local signage for any specific restrictions on certain paths.

Does this route connect with other cycling or hiking trails?

Yes, this route intersects with several other trails. You'll find sections that are part of the Itinéraire n°1 : Nantes - Pays de Retz, the broader Tour du Lac de Grand Lieu, and its winter variants. Other intersecting paths include Circuit "le Bois Charette", Circuit L'Acheneau, and Grande Voie Vélo G, among others.

Are there cafes or restaurants along the Port-Saint-Père cycling route?

The route passes through or near charming traditional villages like Port-Saint-Père and Sainte-Pazanne. These villages typically offer local amenities, including cafes and restaurants where you can stop for refreshments or a meal.

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