4.4
(45)
278
riders
17
rides
Gravel biking around Cayeux-Sur-Mer offers diverse terrain along the English Channel in northern France. The region features a unique blend of coastal landscapes, expansive natural reserves, and dedicated cycling paths. Riders can explore pebble beaches, dunes, and marshes, with the dramatic chalk cliffs of Ault to the south. The area's flat and gentle paths make it accessible for various cycling levels, providing a refreshing experience with constant sea breezes.
Last updated: May 24, 2026
4.4
(8)
54
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(7)
42
riders
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

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4.8
(6)
37
riders
30.3km
01:45
80m
80m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
4.8
(4)
25
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.0
(1)
5
riders
34.7km
02:06
120m
120m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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A very beautiful place, even without seals.
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Very large equipped rest area with snack bar opposite
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Unfortunately, it's not that easy to see the seals, which is a shame.
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Very quiet and peaceful road along the water.
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The current church, built in 1928 in the Romanesque-Byzantine style, is located in the oldest quarter of the city. It has a Latin cross plan, oriented northwest and southwest. The roof is slate, and the nave is covered with long sides and open gables. It features flamboyant stained-glass windows, a listed 17th-century altarpiece, and a Saint Martin's effigy.
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Hourdel Lighthouse is a lighthouse on the common Cayeux-sur-Mer, it is built on the south side of the Bay of Somme, at the end of the point of Hourdel.
4
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Beautiful coast and magnificent viewpoint.
0
1
You'll find a selection of around 9 dedicated traffic-free gravel bike trails in the Cayeux-sur-Mer area. These routes are designed to keep you away from vehicle traffic, offering a peaceful cycling experience through diverse landscapes.
The terrain around Cayeux-sur-Mer is generally flat and gentle, making it accessible for various cycling levels. You'll encounter a mix of surfaces, including segments of the famous pebble beach, dunes, marshes, and coastal paths. Routes like the White Route of the Bay of Somme offer a unique blend of land and sea views, often with unpaved sections perfect for gravel bikes.
Yes, the flat and gentle nature of many paths around Cayeux-sur-Mer makes them ideal for families. The dedicated cycling routes through dunes and along the coast, such as those leading towards Hourdel or Saint-Valery-sur-Somme, are generally traffic-free and suitable for all ages. These routes offer a safe and enjoyable way to explore the region together.
The Baie de Somme is a rich ecological area, making wildlife spotting a highlight of your ride. You might see thousands of migratory birds, as the bay is a crucial route for them. Keep an eye out for France's largest seal colony, with grey and harbor seals often visible on sandbanks at low tide, particularly near the View of the Bay of the Somme and its seals. The Marais du Hâble d'Ault marsh is home to approximately 270 different bird species.
Many routes offer stunning natural and historical sights. You can cycle past the dramatic Ault Chalk Cliffs, visit the Le Hourdel Lighthouse, or enjoy views of the Baie de Somme. The iconic boardwalk in Cayeux-sur-Mer, lined with colorful beach cabins, is also a unique sight. For a cultural stop, consider the Maison de la Baie de Somme near Lanchères, which offers insights into the bay's ecosystem.
The spring and autumn months are generally ideal for gravel biking in Cayeux-sur-Mer. During these seasons, the weather is often pleasant, and the natural landscapes of the Baie de Somme are particularly vibrant, with migratory birds active. The constant sea breeze provides a refreshing element to rides, making it enjoyable even on warmer days.
Yes, you can find several circular routes that allow you to explore the region without retracing your steps. For example, the Ault Chalk Cliffs – Cliffs of Ault loop from Woignarue offers a substantial ride, while the Kanal der Somme – Cycle path along the Canal Somme loop from Saint-Valery Canal provides an easier, flatter option. These loops are designed to maximize your exploration of the diverse coastal and marshland scenery.
While many natural areas in France are dog-friendly, it's always best to check specific regulations for protected zones like the Baie de Somme and the Marais du Hâble d'Ault. Generally, dogs are welcome on trails if kept on a leash, especially to protect local wildlife. Ensure you carry water for your dog and clean up after them.
Cayeux-sur-Mer and nearby towns like Hourdel and Saint-Valery-sur-Somme offer various cafes, restaurants, and shops where you can refuel. While some routes might pass through more remote natural areas, you'll typically find amenities in the villages and towns connected by the cycling paths. It's always a good idea to carry some snacks and water, especially on longer rides.
The komoot community highly rates the gravel biking experience in Cayeux-sur-Mer, with an average score of 4.05 stars. Riders frequently praise the peaceful, traffic-free environment, the stunning coastal views, and the unique opportunity to observe wildlife, especially the seals in the Baie de Somme. The varied terrain, from pebble beaches to marshlands, also receives positive feedback for offering a diverse and engaging ride.
Public transport options in the region might be limited, but the historic Chemin de Fer de la Baie de Somme steam train connects Cayeux-sur-Mer to other towns like Le Crotoy. This train often allows bikes onboard for certain sections, offering a unique way to access different parts of the bay and its trails. Always check their specific bike policies and schedules in advance.


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