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Baie d'Authie – Fort-Mahon-Plage Beach loop from Fort-Mahon-Plage

Routes

Hiking trails & Routes

Baie d'Authie – Fort-Mahon-Plage Beach loop from Fort-Mahon-Plage

Moderate

4.3

(43)

225

hikers

Baie d'Authie – Fort-Mahon-Plage Beach loop from Fort-Mahon-Plage

02:59

11.8km

30m

Hiking

Moderate hike. 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: 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

Parking

Get Directions

4.08 km

Baie d'Authie

Highlight • Beach

Vast marine marshland, the Authie bay is home to remarkable fauna and flora. The wild landscapes are very diverse. They alternate between salt meadows, ponds and dunes.

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5.98 km

Pointe de Routhiauville Beach

Highlight • Beach

6.39 km

Sand dunes at Pointe de Routhiauville

Highlight • Natural

The dunes of Pointe de Routhiauville are a vast, ever-changing landscape where the sea breeze shapes rolling hills of golden sand. As you explore, you will notice the diversity of …

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6.61 km

Wide sandy edge

Highlight • Other

7.92 km

Between the Baie d'Authie and Fort-Mahon Plage

Highlight • Beach

Wonderful and Wilde place, accessible either from the Baie d’Authie parking or from the Fort Mahon Plage parking

Tip by

8.88 km

Beach Promenade

Highlight • Beach

It might not look like it, but the beach is very long and wide, so definitely allow extra time.

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9.03 km

Fort-Mahon-Plage Beach

Highlight • Beach

Fort Mahon Plage is a luxury seaside resort with a very extensive beach and is located in the middle of a protected dune area. You will find many restaurants, boutiques …

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9.80 km

Colorful Houses in Parc naturel régional Baie de Somme Picardie Maritime

Highlight • Settlement

11.8 km

End point

Parking

Way Types & Surfaces

Way Types

4.76 km

2.93 km

2.71 km

1.34 km

Surfaces

5.63 km

2.64 km

2.17 km

1.01 km

280 m

Elevation

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

Weather

Wednesday 1 July

22°C

16°C

-- %

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Comments

July 25, 2025,De mare van Chalet Motte - lus vanaf Fort-Mahon-Plage in het Natuurpark Marines Estuaires Picards en de Opaalzee

In the dunes, it's best to follow the horse-drawn path, not the Komoot. That's how you'll get there.

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Baie d'Authie – Fort-Mahon-Plage Beach loop from Fort-Mahon-Plage

Baie d'Authie

Pointe de Routhiauville Beach

Sand dunes at Pointe de Routhiauville

Wide sandy edge

Between the Baie d'Authie and Fort-Mahon Plage

Beach Promenade

Fort-Mahon-Plage Beach

Colorful Houses in Parc naturel régional Baie de Somme Picardie Maritime

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