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Bike touring routes & trails

Hauts-De-France

Blockhouse of Hourdel – Le Hourdel Lighthouse loop from Ault

Bike touring routes & trails

Hauts-De-France

Blockhouse of Hourdel – Le Hourdel Lighthouse loop from Ault

Moderate

4.2

(14)

61

riders

Blockhouse of Hourdel – Le Hourdel Lighthouse loop from Ault

02:58

40.7km

170m

Cycling

Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: August 25, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Parc naturel régional Baie de Somme Picardie Maritime

Waypoints

A

Start point

Parking

1

6.68 km

Hâble d'Ault 🌊🌿 Nature Reserve 🐎

Highlight • Other

Until the 18th century, the Hâble d'Ault was a bay that served as a refuge during heavy storms. As the bay was increasingly closed off from the sea by stones …

Translated by Google •

Tip by

10.7 km

Beach

Beach

3

13.6 km

Brighton lighthouse at Cayeux-sur-Mer

Highlight • Other

Classic Lighthouse towering 28 m over the small Picard coast town. Built in 1951 to replace the old one destroyed by German troops in 1944.

Tip by

4

14.8 km

White route of the Bay of Somme

Highlight (Segment) • Cycleway

This trail runs along the coast, always staying close to the beach, with several access opportunities and a rich diversity of fauna (seals, birds...).

Showing Translation

Tip by

5

17.4 km

Blockhouse of Hourdel

Highlight • Structure

The bunker's slanted position in the water impressively shows how the coastline has developed over the decades. Only at low tide can you still reach the bunker with dry feet. …

Showing Translation

Tip by

6

18.5 km

Le Hourdel Lighthouse

Highlight • Monument

In 1943, a military base was installed by General Erwin Rommel, in charge of the defense of the Atlantic Wall on the Northwest. He transformed the beach into a vast …

Translated by Google •

Tip by

7

18.6 km

Beach and tip of Hourdel

Highlight • Beach

The pebble beach sometimes hosts seals and offers views of the lighthouse and the marshes.

Showing Translation

Tip by

8

19.2 km

Le Hourdel Marina

Highlight • Structure

The significant tidal differences let this branch of the slough fall dry half of each day

Tip by

9

39.7 km

Cliffs

Highlight • Other

B

40.7 km

End point

Parking

Way Types & Surfaces

Way Types

17.8 km

12.8 km

7.46 km

2.39 km

313 m

Surfaces

17.3 km

15.7 km

6.81 km

480 m

268 m

188 m

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Elevation

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

Highest point (80 m)

Lowest point (0 m)

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Weather

Powered by Foreca

Sunday 18 October

12°C

3°C

0 %

Additional weather tips

Max wind speed: 15.0 km/h

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