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Large beach – Fort du Vauban from the beach loop from Wimereux

Routes

Hiking trails & Routes

Large beach – Fort du Vauban from the beach loop from Wimereux

Moderate

4.6

(400)

2,060

hikers

Large beach – Fort du Vauban from the beach loop from Wimereux

02:05

7.98km

50m

Hiking

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: August 21, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Parc naturel régional des Caps et marais d'Opale

Waypoints

Start point

Bus stop

Get Directions

1.46 km

Sand Fences in the Dunes de la Slack

Highlight • Structure

Picket fences serve as coastal protection. They stabilize the dunes and protect them from erosion. The fence slows the wind, and sand collects around the pickets and settles behind the fence.

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1.96 km

Large beach

Highlight (Segment) • Beach

Part of the GR 120, but the hiking trail is interrupted due to an eroded dune.

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3.14 km

Fort du Vauban from the beach

Highlight • Other

Fort Mahon, known as Fort Vauban or Fort Ambleteuse, was built around 1680 by the architect Vauban to protect against invasions.

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4.33 km

Wooden Boardwalk Through the Dunes de la Slack

Highlight • Trail

Wooden footbridge allowing you to cross the marshy area of the Slack at the entrance to the dunes. This beautiful path crosses the entirety of the dunes of the Slack to the coast at the Wimereux golf course.

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5.09 km

Dune Viewpoint in Parc Naturel Régional des Caps et Marais d'Opale

Highlight • Viewpoint

Beautiful piece of dunes near a small bypass.

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5.29 km

Frog Pond Boardwalk

Highlight • Structure

Frog pool where the planks are still flooded at high tide. Fortunately everything is well secured.

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6.12 km

Viewing Platform in the Dunes of Parc Naturel Régional des Caps et Marais d'Opale

Highlight • Viewpoint

The panoramic board is nice to orient yourself.

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7.98 km

End point

Bus stop

Way Types & Surfaces

Way Types

6.95 km

1.00 km

< 100 m

Surfaces

6.85 km

730 m

248 m

106 m

< 100 m

Elevation

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

Weather

Thursday 27 August

21°C

17°C

82 %

Additional weather tips

Max wind speed: 34.0 km/h

to get more detailed weather forecasts along your route

Comments

May 6, 2022,Dunes de la Slack – Grande plage Rondje vanuit Ambleteuse

Because it went so wrong yesterday, I did it better now.... A little later in the evening, wonderfully quiet.
You could hear the birds, even a cuckoo.
Wild Hyacinth and other beautiful flowers.
Unfortunately no sunset red... But a lovely sporty walk

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August 28, 2021,La Baie de Saint Jean (ongeveer toch)

Very nice walk, a must for those who are in the area.

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April 13, 2024,Dune de Slack

The trail on Slack Dune is closed. I advise you to walk along the dune by the beach

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August 6, 2023,Dunes de la Slack – Pointe aux oies boucle au départ de Ambleteuse

Attention, a part is no longer accessible, the path has collapsed, at the level of the beach before the car park

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November 22, 2024,Dünenrunde bei Ambleteuse (Dunes de La Slack)

On this tour you have to climb over a field of rubble from a rockfall. According to the signs, it is not possible to get through, but if you are fairly sure-footed and feel safe, you can "climb" over it - of course at your own risk, pay attention to the weather, and watch the coast carefully. In this area, …

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May 24, 2022,Dunes de la Slack

Attention, the road over the dunes along the sea has been washed away! At low tide you can easily cross the beach and take the path to the right just before the Slack.

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December 29, 2023,Wandeling Dune de Slack

A walk suggested in the Euroreizen.be brochure. But the brochure stated that the walk was interrupted. There were only Belgians in the parking lot.
We leave on a cobblestone road between the dunes and the Slack and arrive at Ambleteuse Fort. The weather is very changeable.
At the fort we continue walking between the sea and the dunes. It's high …

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July 19, 2023,Dunes de la Slack vanuit Ambleteuse

The Slack is a small river 22 km long that winds its way from its source at Mont Binôt near Hardinghen until it finally flows into the sea on the Opal Coast at the fort of Ambleteuse. It is at this place that we start our family-friendly walk. To the left of the Slack there is a very special dune …

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Large beach – Fort du Vauban from the beach loop from Wimereux

Sand Fences in the Dunes de la Slack

Large beach

Fort du Vauban from the beach

Passerelles en bois

Wooden Boardwalk Through the Dunes de la Slack

Dune Viewpoint in Parc Naturel Régional des Caps et Marais d'Opale

Frog Pond Boardwalk

Viewing Platform in the Dunes of Parc Naturel Régional des Caps et Marais d'Opale

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