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France
Hauts-De-France
Abbeville

Cayeux-Sur-Mer

The best walks and hikes around Cayeux-Sur-Mer

4.4

(598)

3,634

hikers

69

hikes

Hiking around Cayeux-Sur-Mer offers access to diverse natural landscapes, situated on the southern edge of the Baie de Somme. The region features an expansive tapestry of dunes, marshes, and grassy plateaus, providing varied terrain for exploration. Key natural features include the Pointe du Hourdel, known for seal watching, and the Hâble d'Ault, a bird sanctuary. The area also boasts a pine forest with marked walks and the dramatic Ault Chalk Cliffs nearby.

Best hiking trails around Cayeux-Sur-Mer

  • The most popular hiking route is Le Hourdel Loop, a 6.5 miles (10.5 km) trail that takes 2 hours 39 minutes to complete. This moderate route explores the coastal area near Pointe du Hourdel.
  • Another top favourite among local hikers is Blockhaus du Hourdel – Dunes loop from Le Hourdel, a moderate 5.0 miles (8.1 km) path. This trail leads through the dunes and past historical structures.
  • Local hikers also love the Dunes – Entrance to the coastal path loop from Arrêté de Protection de Biotope « Cordon de galets de la Mollière », a 5.2 miles (8.3 km) trail leading through coastal dunes and along the shoreline, often completed in about 2 hours 6 minutes.
  • Hiking around Cayeux-Sur-Mer is defined by coastal paths, extensive dunes, and marshlands, offering varied scenery. The network of trails provides options for different ability levels, from easy walks to moderate hikes.
  • The routes in Cayeux-Sur-Mer are highly rated by the komoot community with an average score of 4.4 stars from nearly 500 reviews. More than 2,800 hikers have used komoot to explore Cayeux-Sur-Mer's varied terrain.

Last updated: July 7, 2026

4.1

(100)

420

hikers

#1.

Le Hourdel Loop

10.5km

02:39

20m

20m

Hike the moderate 6.5-mile Le Hourdel Loop to explore diverse coastal and inland scenery, spot seals, and discover historical landmarks.

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Moderate

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate
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Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy
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Popular around Cayeux-Sur-Mer

Cycling routes in Hauts-de-France for beginners and families

Cycling around Cayeux-Sur-Mer

Running Trails around Cayeux-Sur-Mer

Road Cycling Routes around Cayeux-Sur-Mer

MTB Trails around Cayeux-Sur-Mer

Gravel biking around Cayeux-Sur-Mer

Other adventures around Cayeux-Sur-Mer

Cycling routes in Hauts-de-France for beginners and families

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Tips from the Community

Thomas
August 28, 2025, Submerged WWII Bunker, Baie de Somme

It remains a strange feeling to come across traces so long after the war.

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The traces of the Second World War are still omnipresent, even after 80 years.

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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.

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4

0

A great photo opportunity

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1

0

15 km route in the Hâble (bird reserve, Henson horses in pasture, tranquility)..... for the journey time: here it is Nordic walking...allow a little more for the walk.

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The bunker looks bizarre. Unfortunately it was high tide and no seals were to be seen

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Ulrike
October 4, 2024, Dünen

Very beautiful dunes, even more colorful in spring

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Phil
September 9, 2024, Le Hourdel Lighthouse

the magic of the Bay of Somme and the marriage with the sea. Just pay attention to the tide times but there is a path at the top and protects you

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Frequently Asked Questions

How many hiking trails are available around Cayeux-sur-Mer?

There are over 60 hiking routes around Cayeux-sur-Mer. These include a variety of options, with 36 easy trails, 24 moderate routes, and 2 more challenging hikes, catering to different fitness levels.

What kind of terrain can I expect on the hiking trails in Cayeux-sur-Mer?

The terrain around Cayeux-sur-Mer is quite varied, featuring an expansive tapestry of dunes, marshes, and grassy plateaus. Many routes follow coastal paths, while others venture into pine forests or along the unique pebble beach. The general elevation changes are minimal, making most trails accessible.

Are there any family-friendly hiking options in Cayeux-sur-Mer?

Yes, Cayeux-sur-Mer offers several family-friendly walks. The region's generally gentle terrain, including marked walks through the pine forest and the car-free White Road through the dunes, makes it suitable for families. The long wooden boardwalk along the pebble beach also provides a unique and easy stroll.

Can I bring my dog on the hiking trails around Cayeux-sur-Mer?

Many trails in the Cayeux-sur-Mer area are suitable for dogs, especially those along the coast and through the dunes. However, it's always advisable to check local signage, especially in nature reserves like the Hâble d'Ault, where specific rules for dogs might apply to protect wildlife.

What natural attractions or landmarks can I see while hiking near Cayeux-sur-Mer?

Hikers can discover several notable natural attractions. The Baie de Somme itself is a major highlight, and you can observe seals at the Pointe du Hourdel. The White Route of the Bay of Somme offers scenic views, and the nearby Ault Chalk Cliffs provide a dramatic coastal backdrop.

Are there circular hiking routes available in Cayeux-sur-Mer?

Yes, there are several excellent circular routes. For example, the Le Hourdel Loop is a popular moderate trail exploring the coastal area. Another option is the Observatory 4 – Hable d'Ault Observatory loop from Cayeux-sur-Mer, an easy route perfect for birdwatching.

What is the best time of year to go hiking in Cayeux-sur-Mer?

The best time to hike in Cayeux-sur-Mer is generally during the spring, summer, and early autumn months when the weather is milder and more predictable. These seasons offer pleasant conditions for exploring the coastal paths, dunes, and marshes, and are ideal for wildlife observation.

Where can I park when accessing hiking trails in Cayeux-sur-Mer?

Parking is generally available in and around Cayeux-sur-Mer, particularly near popular access points for the coastal paths and the town center. Specific parking areas can be found near the Pointe du Hourdel and other trailheads. Public transport options are also available to reach the area.

What do other hikers enjoy most about hiking in Cayeux-sur-Mer?

The hiking experience in Cayeux-sur-Mer is highly rated by the komoot community, with an average score of 4.4 stars from nearly 500 reviews. Hikers often praise the diverse coastal landscapes, the opportunities for seal and bird watching, and the well-maintained paths through dunes and marshes.

Are there any trails that offer good opportunities for birdwatching?

Absolutely. Cayeux-sur-Mer is located on a migratory bird route, making it an excellent spot for birdwatching. The Observatory 4 – Hable d'Ault Observatory loop from Cayeux-sur-Mer specifically leads to the Hâble d'Ault, a free bird sanctuary where you can observe numerous species.

What is the difference between coastal and inland hikes in Cayeux-sur-Mer?

Coastal hikes in Cayeux-sur-Mer typically follow the Sentier du Littoral, offering expansive views of the English Channel, the Baie de Somme, and leading through dunes and along the pebble beach. Inland routes might venture into the pine forest or across grassy plateaus, providing a different perspective of the region's diverse ecosystems, often with more sheltered paths.

Is it possible to see historical structures on the trails?

Yes, some trails incorporate historical elements. For instance, the Blockhaus du Hourdel – Dunes loop from Le Hourdel leads through the dunes and past historical structures, offering a glimpse into the area's past alongside its natural beauty.

Most popular routes around Cayeux-Sur-Mer

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