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Somme Bay – Marquenterre Park loop from Saint-Firmin

Routes

Hiking trails & Routes

Somme Bay – Marquenterre Park loop from Saint-Firmin

Hard

4.7

(66)

542

hikers

Somme Bay – Marquenterre Park loop from Saint-Firmin

06:06

24.1km

40m

Hiking

Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: April 2, 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

Parking

Get Directions

1.75 km

Somme Bay

Highlight • Lake

Beautiful mud flats

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3.85 km

Panoramic view of Marquenterre Park

Highlight • Viewpoint

If you are looking for a breathtaking view of the Parc du Marquenterre, a nature reserve that hosts hundreds of migratory birds, you must not miss this viewpoint where a …

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8.64 km

Walking Path in Parc naturel régional Baie de Somme Picardie Maritime

Highlight • Trail

Beautiful, very pleasant cycle paths.

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9.20 km

Marquenterre Dune Trail

Highlight (Segment) • Trail

This path provides access to the sea by following the Crocs hike around Marquenterre. The parking lot is convenient but quickly fills up.

The path passes from the pine forest …

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12.4 km

Plage du Marquenterre

Highlight • Beach

Wild and isolated, this beach is one of the most beautiful in Picardy. It extends for several kilometers between the Baie de Somme and Quend-Plage, and is bordered by immense dunes of fine sand.

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14.4 km

Trail access

Highlight • Other

Just for information

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18.2 km

Marquenterre Park

Highlight • Other

Magnificent ornithological park with several viewpoints designed to observe birds without being seen. Visit at several times of the year to see different species.

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18.8 km

Sea Lavender Bloom in Parc Naturel Marin des Estuaires Picards et de la Mer d'Opale

Highlight • Natural

If you're lucky, you'll see sea lilacs, a plant with purple flowers that covers the beach in summer. It is a rare and magnificent spectacle that will make your hike unforgettable.

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24.1 km

End point

Parking

Way Types & Surfaces

Way Types

9.28 km

8.58 km

3.22 km

2.42 km

648 m

Surfaces

10.5 km

4.78 km

3.14 km

3.09 km

2.61 km

Elevation

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

Weather

Monday 18 May

18°C

9°C

82 %

Additional weather tips

Max wind speed: 24.0 km/h

to get more detailed weather forecasts along your route

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

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Somme Bay – Marquenterre Park loop from Saint-Firmin

Somme Bay

Panoramic view of Marquenterre Park

Walking Path in Parc naturel régional Baie de Somme Picardie Maritime

Marquenterre Dune Trail

Plage du Marquenterre

Trail access

Marquenterre Park

Sea Lavender Bloom in Parc Naturel Marin des Estuaires Picards et de la Mer d'Opale

Nearby routes

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