Tour of Lac de Grand-Lieu: Port-Saint-Père Loop
Tour of Lac de Grand-Lieu: Port-Saint-Père Loop
4.3
(4)
16
riders
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
Start point
Parking
Get Directions
1.93 km
Highlight • Religious Site
Translated by Google •
Tip by
6.26 km
Highlight • River
Translated by Google •
Tip by
14.3 km
Highlight (Segment) • Trail
Translated by Google •
Tip by
25.8 km
Highlight • Other
Translated by Google •
Tip by
32.3 km
End point
Parking
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
Sign up to see more specific route details
Sign up for free
Elevation
Sign up to see more specific route details
Sign up for free
Weather
Powered by Foreca
Friday 22 May
32°C
15°C
0 %
Additional weather tips
Max wind speed: 16.0 km/h
to get more detailed weather forecasts along your route
This route was planned by komoot.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.