Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Login or Signup

Routes
Hiking trails & Routes
France
Hauts-De-France
Montreuil
Groffliers

View of the Baie de Authie – Beautiful stretch of coast loop from Groffliers

Routes
Hiking trails & Routes
France
Hauts-De-France
Montreuil
Groffliers

View of the Baie de Authie – Beautiful stretch of coast loop from Groffliers

Moderate

4.5

(35)

136

hikers

View of the Baie de Authie – Beautiful stretch of coast loop from Groffliers

03:20

13.1km

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: April 7, 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

Waypoints

A

Start point

Parking

Get Directions

1

1.92 km

Sandy Dunes of Parc Naturel Marin des Estuaires Picards et de la Mer d'Opale

Highlight • Beach

Endless sandy landscape and sometimes very bizarre when it's windy

Translated by Google •

Tip by

2

2.49 km

View of the Baie de Authie

Highlight • Other

Expansive and imposing landscape of sand and water

Translated by Google •

Tip by

3

2.51 km

Atlantic Wall Bunker Remains

Highlight • Historical Site

Remains of a bunker position of the Atlantic Wall. Also preserved are the remains of an ammunition bunker and parts of wire entanglements used to secure the dune entrances.

Translated by Google •

Tip by

4

3.32 km

Beautiful stretch of coast

Highlight • Other

Beautiful stretch of coast with great views of the Baie

Translated by Google •

Tip by

5

3.47 km

Polder

Highlight • Other

Polder made of wooden poles, great as a photo motif

Translated by Google •

Tip by

6

3.51 km

Baie d'Authie Coastal Area

Highlight • Beach

Fantastic and endless views along the coast. To the north you can see the Berck lighthouse, and to the south, the dunes and wild beaches of Authie Bay.

Translated by Google •

Tip by

4.16 km

Beach

Beach

8

4.88 km

Seal watching

Highlight • Other

Robbing seals and watching 🤣

Translated by Google •

Tip by

9

5.02 km

You rarely get this close to seals

Translated by Google •

Tip by

B

13.1 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

6.70 km

3.81 km

1.03 km

860 m

715 m

Surfaces

7.35 km

3.69 km

940 m

757 m

194 m

181 m

Sign up to see more specific route details

Sign up for free

Elevation

Elevation

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

Sign up to see more specific route details

Sign up for free

Weather

Powered by Foreca

Thursday 21 May

28°C

11°C

-- %

Additional weather tips

Max wind speed: -- 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.

Save

Edit route

Download GPX

Move start point

Print

Share

Embed on a website

Report an Issue

Nearby routes

Moderate

4.1

406

Le Hourdel Loop

02:39h

10.5km

20m

Explore
RoutesRoute plannerFeaturesHikesMTB TrailsRoad cycling routesBikepackingSitemap
Download the app
Follow Us on Socials

© komoot GmbH

Privacy Policy