Cliffs of Ault and Bois de Cise Loop
Cliffs of Ault and Bois de Cise Loop
4.0
(40)
101
riders
01:36
24.2km
210m
Cycling
Cycle a moderate 15.0-mile loop from Mers-les-Bains to the dramatic Cliffs of Ault, enjoying Belle Époque architecture and coastal views.
Last updated: February 26, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
Start point
Parking
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760 m
Highlight • Historical Site
Translated by Google •
Tip by
1.46 km
Highlight • Beach
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Tip by
8.80 km
Highlight • Viewpoint
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Tip by
9.97 km
Highlight • Other
Tip by
19.9 km
Highlight • Castle
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Tip by
24.2 km
End point
Parking
Way Types & Surfaces
Way Types
11.7 km
5.57 km
3.93 km
2.54 km
199 m
121 m
111 m
Surfaces
15.0 km
4.55 km
2.53 km
2.07 km
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Elevation
Highest point (100 m)
Lowest point (0 m)
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Weather
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Sunday 17 May
14°C
8°C
37 %
Additional weather tips
Max wind speed: 17.0 km/h
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This route was planned by komoot.
This 24.2 km loop is categorized as a moderate bike ride with about 215 meters of elevation gain, indicating some inclines. While significant portions are paved (asphalt), the route also includes unpaved sections and paths. Touring cyclists should be prepared for varied surfaces, and some unpaved segments might be challenging, potentially requiring you to push your bike.
The loop offers diverse scenery. You'll pass the distinctive Belle Époque houses of Mers-les-Bains, enjoy views from the Beach and cliffs of Mers-les-Bains, and experience the dramatic chalky cliffs stretching beyond Ault. Don't miss the Ault viewpoint and the Eastern end of Falaises d'Albâtre, Ault coastal panorama. The route also takes you through the expansive maritime plain known as "les Bas Champs" and past the Castle Park.
While specific parking lots are not detailed, Mers-les-Bains is the starting and ending point for this loop. You should be able to find parking within the town to access the route. For more detailed information on parking options in Mers-les-Bains, you might check local tourism resources like somme-tourisme.com.
This 24.2 km loop is rated as 'moderate' and requires good fitness, making it most suitable for touring cyclists comfortable with varied terrain. While some sections are paved, there are unpaved paths that might be difficult for less experienced riders or those with children, potentially requiring them to push their bikes. It's not typically recommended as a beginner-friendly or easy family ride.
The Baie de Somme region, including the cliffs of Ault, is beautiful in spring, summer, and early autumn. These seasons generally offer more favorable weather for cycling and enjoying the coastal views and natural park. Always check the local weather forecast before you go.
The trail passes through the Baie de Somme Picardie Maritime Regional Natural Park and along coastal areas. While specific regulations for dogs on cycling trails are not provided, it's generally advisable to keep dogs on a leash, especially in natural park areas to protect wildlife and ensure safety for all users. Always check local signage for specific rules.
Cycling this loop, which is located within the Parc naturel régional Baie de Somme Picardie Maritime, does not typically require specific permits or entrance fees for general access. However, always respect local regulations and private property. For any specific events or protected areas, it's wise to consult the park's official website or local tourism offices like somme-tourisme.com for the latest information.
Yes, this route is part of a larger cycling network. It intersects with sections of the EV4 France, Circuit De Lamotte, Sentier du Littoral, Chemin des Étangs, and Chemin entre Verre et Mer. The Baie de Somme area boasts 160 km of signposted routes across 9 loops, and 44 km of cycle paths on the Vélomaritime (EuroVelo 4), offering possibilities for extending your ride.
The Baie de Somme Picardie Maritime Regional Natural Park is known for its rich biodiversity. You might spot migratory birds, especially in the wetlands and marshes, and even harbor seals along the coast. The diverse landscape of wetlands, dunes, and woodlands supports a variety of flora and fauna.
The loop starts and ends in Mers-les-Bains, where you'll find various cafes, restaurants, and shops. As you cycle along the coast towards Ault, there may be fewer options, so it's a good idea to plan your stops or carry snacks and water, especially for the sections between towns.
The estimated duration for this 24.2 km touring bicycle loop is approximately 1 hour and 36 minutes (5763 seconds). However, this can vary depending on your cycling speed, fitness level, and how often you stop to enjoy the viewpoints and scenery.