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Dunes de la Slack — loop from Wimereux in the parc naturel régional des Caps et marais d'Opale

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Hiking trails & Routes

Dunes de la Slack — loop from Wimereux in the parc naturel régional des Caps et marais d'Opale

Easy

4.6

(365)

1,901

hikers

Dunes de la Slack — loop from Wimereux in the parc naturel régional des Caps et marais d'Opale

01:45

6.75km

40m

Hiking

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: August 12, 2024

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

Parking

Get Directions

1.18 km

Large beach

Highlight (Segment) • Beach

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

Translated by Google •

Tip by

2.64 km

This fort is the only one left of the seven that defended the coast of Boulogne.
In 169, the English king James II, chased away by his subjects, came ashore in the already silted up harbour. When Napoleon planned an invasion of England, part of his fleet was located here. From the beach you have a view of the entrance to the port of Boulogne and in clear weather even of the English cliffs.

Translated by Google •

Tip by

3.73 km

Dunes of the Slack

Highlight (Segment) • Natural Monument

Dunes de la Slack is a beautiful nature reserve on the Opal Coast, between Wimereux and Ambleteuse. The area is named after La Slack, a river that flows through the dunes and flows into the sea at Fort d'Ambleteuse. The area is ideal for hikers and nature lovers. There are several walking routes available, including the 'La Baie de Saint-Jean' walk, which partly coincides with the GR120 du Littoral. The dunes are a varied dune area of the Parc naturel régional des Caps et marais d'Opale.

Translated by Google •

Tip by

6.75 km

End point

Parking

Way Types & Surfaces

Way Types

5.00 km

1.62 km

119 m

< 100 m

Surfaces

5.01 km

1.42 km

164 m

< 100 m

Elevation

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

Weather

Saturday 18 July

19°C

13°C

0 %

Additional weather tips

Max wind speed: 23.0 km/h

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Comments

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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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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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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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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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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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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September 1, 2025,Ambleteuse an der Opalküste, Dünen de la slack

A wonderful loop, first along the almost deserted, very large beach, near Fort d'Ambleteuse, then through the dunes.
It's tiring to walk on the sandy paths, but absolutely fantastic 🤩

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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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Dunes de la Slack — loop from Wimereux in the parc naturel régional des Caps et marais d'Opale

Large beach

Fort d'Ambleteuse

Dunes of the Slack

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