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Routes
Road cycling routes
France
Manche

Cotentin and Bessin Marshes Park Loop from Saint-Lô

Routes
Road cycling routes
France
Manche

Cotentin and Bessin Marshes Park Loop from Saint-Lô

Hard

Cotentin and Bessin Marshes Park Loop from Saint-Lô

05:33

132km

950m

Road cycling

This difficult 82.1-mile road cycling loop through the Parc Naturel Régional des Marais du Cotentin offers diverse terrain and marsh views.

Last updated: February 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parc naturel régional des Marais du Cotentin et du Bessin

Basses Vallées du Cotentin et Baie des Veys

Waypoints

A

Start point

Parking

Get Directions

1

54.6 km

Saint-Sauveur-Le-Vicomte Castle

Highlight • Castle

Castle from the 12th century. French heritage monument of the Hundred Years' War.

Translated by Google •

Tip by

2

66.5 km

To see the phenomenon of the white marshes, you have to go there in winter (January - February - March for example). The roads can be greasy and / or …

Translated by Google •

Tip by

3

95.8 km

Isigny-sur-Mer

Highlight • Cycleway

Along the Aure you can walk to the confluence with the Vire or cycle on the quays.

Translated by Google •

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4

103 km

Traversée du Grand Marais

Highlight (Segment) • Other

In winter, when the water rises in the marshes, the road is covered with water as for a ford

Translated by Google •

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B

132 km

End point

Parking

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Way Types & Surfaces

Way Types

115 km

8.25 km

6.58 km

2.08 km

< 100 m

Surfaces

129 km

2.98 km

< 100 m

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Elevation

Elevation

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

Highest point (120 m)

Lowest point (0 m)

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Weather

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Thursday 28 May

25°C

17°C

0 %

Additional weather tips

Max wind speed: 10.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

How long does it typically take to complete this racebike loop?

This challenging racebike loop is approximately 132 km long with about 950 meters of elevation gain. It typically takes around 5 hours and 33 minutes to complete, requiring very good fitness.

What is the terrain like on this racebike route?

The terrain is quite varied. You'll find flat stretches, especially through the marshes and along river towpaths. However, the route also features gentle slopes and hilly areas, particularly near Valognes or Saint-Sauveur-le-Vicomte, offering more challenging climbs. The surfaces are mostly well-paved, making it suitable for road cycling.

Is the Loop of Saint-Lô suitable for beginners?

No, this specific loop is rated as difficult and requires very good fitness due to its length (132 km) and significant elevation gain (950 meters). Beginners might find sections of the wider Parc Naturel Régional des Marais du Cotentin et du Bessin more suitable for easier rides.

What natural features and landmarks can I see along the way?

The route offers picturesque countryside, lush valleys, and the distinctive wetlands of the Regional Natural Park. You'll pass by the historic Saint-Sauveur-Le-Vicomte Castle, enjoy Breathtaking view of the Marais de l'Angle, and cycle through Isigny-sur-Mer. The Traversée du Grand Marais is another notable section.

When is the best time of year to cycle this loop?

The marshes are vibrant and change with the seasons, making spring and autumn particularly scenic for nature observation, especially during bird migration. Summer offers warmer, longer days, but can be busier. Always check local weather conditions before you go.

Where can I park or start this cycling loop?

While specific parking spots for this exact loop aren't detailed, Saint-Lô itself offers various parking options. As the route is a loop, you can typically start and finish in Saint-Lô or any convenient point along the route that offers parking. Consider checking local tourism websites like manche-tourism.com for up-to-date parking information in Saint-Lô or nearby towns.

Are there any permits or entrance fees required for cycling within the Parc Naturel Régional des Marais du Cotentin et du Bessin?

Generally, there are no specific permits or entrance fees required for cycling on public roads and designated cycle paths within the Parc Naturel Régional des Marais du Cotentin et du Bessin. However, always respect local regulations, especially concerning protected natural areas and private property.

Is this racebike route dog-friendly?

While cycling on public roads, dogs are generally permitted if kept under control. However, as this is a racebike route, it's primarily designed for cyclists. If you plan to bring a dog, ensure it can keep up safely and is accustomed to long distances and road conditions. Always check specific rules for any natural reserves or private lands you might pass through.

Does this route connect with other cycling paths?

Yes, sections of this route are part of larger cycling networks. You might find yourself on parts of 'Les Marais de l'Aure', 'Circuit vélo des Marais', or even 'La VéloWestNormandy: des Plages du Débarquement au Mont-Saint-Michel'. The route also touches upon segments of the EuroVelo 4 (La Vélomaritime).

What essential gear should I bring for this racebike tour?

Given the length and difficulty, you should bring a well-maintained racebike, appropriate cycling attire, a helmet, plenty of water and snacks, a repair kit (spare tube, pump, tools), navigation device (like a GPS or komoot app), and sun protection. Weather can change, so layers are advisable.

Are there places to stop for food or drinks along the route?

Yes, the route passes through several towns and villages, including Isigny-sur-Mer, where you can find cafes, bakeries, and restaurants to refuel. It's always a good idea to carry some snacks and water, especially on longer stretches between towns.

What kind of wildlife might I encounter while cycling?

The Parc Naturel Régional des Marais du Cotentin et du Bessin is known for its rich biodiversity. You might spot various bird species, especially in the marshlands, as it's a significant area for migratory birds. Keep an eye out for local farm animals like sheep and horses in the meadows, and occasionally, you might even see harbor seals in specific coastal areas of the wider park.

Nearby routes

Moderate

5.0

34

Small Loop on the Cliffs of Bessin

02:09h

52.9km

260m

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