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Routes
France
Hauts-De-France
Montreuil
Groffliers

Port of La Madelon – The Pebble Bridge loop from Groffliers

Routes
France
Hauts-De-France
Montreuil
Groffliers

Port of La Madelon – The Pebble Bridge loop from Groffliers

Easy

4.0

(1)

2

riders

Port of La Madelon – The Pebble Bridge loop from Groffliers

01:15

21.0km

60m

Gravel riding

Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: May 12, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parc naturel marin des Estuaires picards et de la mer d'Opale

Parc naturel régional Baie de Somme Picardie Maritime

Waypoints

A

Start point

Parking

Get Directions

1

1.23 km

Port of La Madelon

Highlight • River

Once flourishing under the protection of Waben Castle, the port of Madelon, with its medieval Berck fishing fleet, evolved into a marina due to the siltation of Authie Bay. Today, …

Translated by Google •

Tip by

2

3.36 km

Path Between the Fields

Highlight • Trail

3

5.46 km

The Stone Bridge

Highlight • Bridge

The La passerelle de l'Authie, inaugurated in April 2022, is a 52-meter-long pedestrian and cycle structure that facilitates the safe crossing of the Authie river. Connecting the departments of Somme …

Showing Translation

Tip by

4

5.52 km

Footbridge over the Authie

Highlight • Bridge

Uberquerung der Authie 💦

Crossing L’Authie 💦

Translated by Google •

Tip by

5

5.90 km

Château d'Authie

Highlight • Castle

It is in the small village of Conchil-le-Temple that the castle of Pas d'Authie is erected. Towards the middle of the 19th century, Baron de Torcy Félix Moulart had a …

Translated by Google •

Tip by

6

19.5 km

Well-Maintained Bike Path

Highlight • Cycleway

Wide cycle path separated by green strips that leaves nothing to be desired.

Translated by Google •

Tip by

7

19.9 km

New Cycle Path

Highlight • Cycleway

8

20.1 km

Pont Fleury

Highlight • Bridge

B

21.0 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

7.46 km

6.22 km

5.32 km

1.73 km

191 m

< 100 m

< 100 m

Surfaces

7.68 km

7.65 km

3.72 km

1.97 km

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Elevation

Elevation

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

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Weather

Powered by Foreca

Thursday 21 May

26°C

11°C

0 %

Additional weather tips

Max wind speed: 14.0 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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