View of the Opal Coast – Hardelot Bunker loop from Baincthun

View of the Opal Coast – Hardelot Bunker loop from Baincthun

Hard

riders

View of the Opal Coast – Hardelot Bunker loop from Baincthun

03:47

58.9km

690m

Gravel riding

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: September 25, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parc naturel régional des Caps et marais d'Opale

Waypoints

Start point

Bus stop

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3.54 km

Forest

Highlight • Other

Ok asphalt, with 300m of gravel.

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9.43 km

Hesdigneul-lès-Boulogne

Highlight • Settlement

A forestry and farming village situated some 5 miles (8.0 km) south of Boulogne, at the junction of the D52 and D240 roads. The A16 autoroute forms the western border …

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21.0 km

Blockhaus du coteau du fond des barges

Highlight • Other

Large Second World War munitions depot converted into bat reserve

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23.2 km

View of the Opal Coast

Highlight • Viewpoint

very beautiful panorama not to be missed with sea view easy to access on foot or by bike

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24.0 km

Hardelot Bunker

Highlight • Historical Site

you can admire part of our heritage but above all a piece of history

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43.8 km

Grand'Place Samer

Highlight • Other

This market town is famous for its strawberries, which have been cultivated for over a century. There is also an annual Strawberry Festival celebrated throughout the region. The Grand'Place, the …

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44.0 km

Samer and the Saint-Martin Church

Highlight • Religious Site

The 15th century church, a remnant of the abbey, has an octagonal bell tower and an 11th century Romanesque baptismal font. The structure is remarkable for the buildings that are built against the church, not unusual in the Middle Ages.

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49.0 km

Église Saint-Martin, Carly

Highlight • Other

Church rebuilt in the 19th century and the baptismal font dates from the 13th century.
Church of elongated and occidentee plan and one can see a cemetery all around.
It …

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58.9 km

End point

Bus stop

Way Types & Surfaces

Way Types