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Natural Monuments
France
Hauts-De-France

Boulogne-Sur-Mer

Routes
Places to see
Natural Monuments
France
Hauts-De-France

Boulogne-Sur-Mer

The Top 11 Natural Monuments around Boulogne-Sur-Mer

Boulogne-Sur-Mer’s landscape is a beautiful place to explore — something that you can best experience by visiting one of our 11

beautiful natural monuments around Boulogne-Sur-Mer. To help you find the one for, you can see all the details you need to explore the best natural monuments, and better plan your next outdoor adventure!

Last updated: October 29, 2025

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 …

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Condette Marsh Nature Reserve

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Smooth natural lakes in a protected nature area with excellent trails to pass by bike without car traffic

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View of Cap Blanc Nez and the English Channel

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Very nice path through the dunes with a wonderful view of the canal, Cap Gris Nez and Cap Blanc Nez.

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Panorama of the beach from Boulogne-sur-Mer to Pointe de la Crèche

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Pointe de la Crèche is a nature reserve located at the northern entrance of Boulogne-sur-Mer. It is a protected area of landscape and cultural interest, made up of three parts: …

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Gris-Nez Beach

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Small but beautiful beach with stunning views to the gray Cape cliff and Wissant. When visibility is good, you can see the cliffs of Cap Blanc Nez.

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Lake of Mirrors (Spiegelsee) – Condette Marsh

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The pretty Lac des Miroirs (Spiegelsee) is picturesquely situated in the Marais de Condette nature reserve.

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Cran de la Vierge and the Rocky Beach at Cran Poulet

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Cran Poulet or cran de la Vierge because of the statue of Mary that stands here. You are never alone in this place. Pleasant walking path to follow.

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Frog Pond Boardwalk

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Frog pool where the planks are still flooded at high tide. Fortunately everything is well secured.

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Geese Point

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Here the future Napoleon III came ashore on August 6, 1840 to incite the garrison of Boulogne to revolt.

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Viewing Platform in the Dunes of Parc Naturel Régional des Caps et Marais d'Opale

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The panoramic board is nice to orient yourself.

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Other adventures around Boulogne-Sur-Mer

Via Francigena in the Pas-de-Calais – GR 145

Hiking Collection by

Pas-de-Calais Tourisme

Journey from Flanders to the Somme – GR 120 coastal path

Hiking Collection by

Deki Fourcin

Five days cycling along the Opal Coast in Pas-de-Calais – La Vélomaritim

Cycling Collection by

Pas-de-Calais Tourisme

From pink granite to the Opal Coast — cycle France’s la Vélomaritime

Cycling Collection by

Vincent Reboul

Les Sacados en Rando dans le Pas-de-Calais

Hiking Collection by

Pas-de-Calais Tourisme

Most popular routes around Boulogne-Sur-Mer

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Most popular attractions around Boulogne-Sur-Mer

Places to see

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Didn’t find what you were looking for?

Find even more amazing natural monuments around Boulogne-Sur-Mer by checking out the top Highlights region by region:

BazinghenLe PortelWissantRinxentFerquesCondetteAudinghenEchinghenAudembertAmbleteuseSaint-InglevertBeuvrequenConteville-Lès-BoulognePernes-Lès-BoulogneHervelinghenLa Capelle-Lès-BoulognePittefauxWimereuxSaint-Martin-BoulogneSaint-LéonardOffrethunLandrethun-Le-NordManinghen-HenneWacquinghenLeulinghen-BernesTardinghenWierre-EffroyWimilleBaincthunLeubringhenOutreauAudressellesMarquise

Explore more

Extend your search for the best caves by checking out these guides of the top ones around Boulogne-Sur-Mer:

Pas-de-CalaisSommeAbbevilleCalaisSaint-OmerOiseLilleBéthuneAisneLensDouaiAmiensPéronneAtrecht

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