Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: January 19, 2026

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Tips

Includes a segment in which cycling is not permitted

After 4.89 km for 65 m

Waypoints

Start point

Train Station

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5.74 km

Chemin de Fer de la Baie de Somme (Saint-Valery-sur-Somme)

Highlight • Monument

Terminus of the historic steam-powered railway to the other seaside resorts of the Baie de Somme.

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8.52 km

Cape Hornu

Highlight • Beach

Cap Hornu is a cape located near Saint-Valery-sur-Somme, on the south bank of the Bay of Somme.
The name Cap Hornu comes from the Picard word “hornu”, which means “horned” …

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15.9 km

Le Hourdel Lighthouse

Highlight • Monument

Right next to the lighthouse there are restaurants and a few stalls where you can buy souvenirs, crepes and coffee.

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17.0 km

Blockhaus du Hourdel

Highlight • Structure

In 1943, a military base was set up by General Erwin Rommel, responsible for the defense of the Atlantic Wall in the Northwest. He transformed the beach into a vast …

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17.1 km

White Route of the Bay of Somme

Highlight (Segment) • Cycleway

Paved track along the coast, always close to the beach, with several access opportunities and a rich diversity of wildlife (seals, birds, ...)

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20.8 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.

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22.9 km

Beach

29.9 km

Le Hourdel Marina

Highlight • Structure

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

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44.1 km

End point

Train Station

Way Types & Surfaces

Way Types

31.7 km

6.50 km

3.45 km

1.02 km

484 m

482 m

478 m

Surfaces

30.6 km

8.66 km

2.12 km

1.39 km

774 m

523 m

Elevation

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

Weather

Wednesday 18 March

17°C

5°C

0 %

Additional weather tips

Max wind speed: 18.0 km/h

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Chemin de Fer de la Baie de Somme (Saint-Valery-sur-Somme)

Cape Hornu

Le Hourdel Lighthouse

Blockhaus du Hourdel

White Route of the Bay of Somme

Brighton lighthouse at Cayeux-sur-Mer

Le Hourdel Marina

Nearby routes

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