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France
Hauts-De-France
Boulogne-Sur-Mer
Ambleteuse

La Slack Lock

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La Slack Lock

Recommended by 183 cyclists out of 191

This Highlight is in a protected area

Please check local regulations for:

Parc naturel régional des Caps et marais d'Opale

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    Routes here

    Top cycling routes to La Slack Lock

    4.7

    (20)

    124

    riders

    1. View over Wimereux – Cap Gris-Nez Lighthouse loop from Audresselles

    28.8km

    01:49

    280m

    280m

    Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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    Moderate

    Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

    Moderate

    Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

    Hard

    Tips

    April 28, 2023

    The Slack is a small coastal river, which flows into the sea, near Fort Ambleteuse.
    Although modest today, the Slack was much more imposing in the past, when the gravel was mined near the fort. At the time of the Camp de Boulogne, between 1803 and 1805, Napoleon had even thought of bringing his fleet here. Suffice to say that the Slack was something else!

    Translated by Google •

      Historic locks of the narrow old canal, almost overgrown. Great view from the bridge along the length of the canal toward the coast, and from Le Touquet to Sainte-Cecile. Stairs lead down to explore the ancient locks and pass under the bridge.

        July 6, 2025

        beautiful walk with departure and arrival at the fort of Ambleteuse. At low tide you can wade through the river at the height of the fort.

        Translated by Google •

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          Elevation 60 m

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          Wednesday 3 December

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          6°C

          20 %

          If you start your activity now...

          Max wind speed: 22.0 km/h

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          Location: Ambleteuse, Boulogne-Sur-Mer, Hauts-De-France, France

          Other Popular Places to Check Out

          Fort d'Ambleteuse

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