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Saint-Valery-sur-Somme – Cape Hornu loop from Routhiauville

Routes

Hiking trails & Routes

Saint-Valery-sur-Somme – Cape Hornu loop from Routhiauville

Hard

3.4

(5)

hikers

Saint-Valery-sur-Somme – Cape Hornu loop from Routhiauville

07:37

29.9km

80m

Hiking

Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

Last updated: June 18, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parc naturel régional Baie de Somme Picardie Maritime

Parc naturel marin des Estuaires picards et de la mer d'Opale

Waypoints

Start point

Get Directions

9.15 km

Beautiful natural domain

Highlight • Other

10.3 km

Blockhaus du Hourdel

Highlight • Monument

At low tide you can see the seals on the sandbanks

Translated by Google •

Tip by

10.4 km

Submerged WWII bunker, Baie de Somme

Highlight • Monument

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

Translated by Google •

Tip by

11.1 km

Entrance to the coastal path

Highlight • Other

Please note, this trail is only passable at low tide or at least 3 ½ hours before the tide is completely high. It leads to seal colonies.

Tide times and coefficients in Cayeux-sur-Mer: maree.info/11

Translated by Google •

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12.1 km

Access to the Coastal Path – Baie de Somme

Highlight • Trail

Please note, this trail is only passable at low tide or at least 3 ½ hours before the tide is completely high. It leads to seal colonies.
Tide times and coefficients in Cayeux-sur-Mer: maree.info/11

Translated by Google •

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25.5 km

Saint-Valery-sur-Somme

Highlight • Settlement

Beautiful and truly a charming town to discover and spend time in.

Translated by Google •

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26.0 km

Saint-Valery-sur-Somme Old Town

Highlight • Historical Site

It is a very old church (12th century). In 1475, the church was burned on the orders of King Louis XI to prevent the city from being handed over to …

Translated by Google •

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26.4 km

Beach

27.4 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” …

Tip by

29.9 km

End point

Way Types & Surfaces

Way Types

15.3 km

6.16 km

6.02 km

850 m

632 m

456 m

Surfaces

12.1 km

8.10 km

5.78 km

1.90 km

1.47 km

< 100 m

Elevation

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

Weather

Wednesday 15 July

30°C

14°C

0 %

Additional weather tips

Max wind speed: 23.0 km/h

to get more detailed weather forecasts along your route

Comments

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Saint-Valery-sur-Somme – Cape Hornu loop from Routhiauville

Beautiful natural domain

Blockhaus du Hourdel

Submerged WWII bunker, Baie de Somme

Entrance to the coastal path

Access to the Coastal Path – Baie de Somme

Saint-Valery-sur-Somme

Saint-Valery-sur-Somme Old Town

Cape Hornu

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