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The Top 20 Natural Monuments in Hainaut

Hainaut’s landscape is a beautiful place to explore — something that you can best experience by visiting one of our 20

beautiful natural monuments in Hainaut. 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 1, 2025

Le Caillou-qui-Bique

A legend has been perpetuated for generations on this 25 meter high stone planted on a ridge (in patois we say that it rocks).

A little step back in time... …

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State Nature Reserve of the Mer de Sable

The Mer de Sable nature reserve is a 22-hectare protected area, renowned for its peat moors and young birch forests. Formerly a pond that dried up in the 19th century, …

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Marais d'Harchies-Hensies-Pommerœul Nature Reserve

Like most of the wetlands in the Haine valley, the Harchies-Hensies-Pommeroeul marshes were formed in subsidence caused by mining. The depressions were formed in the mid-1920s and immediately filled with …

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Witches’ Trail – Sculpture Route in the Parc naturel du Pays des Collines

Magnificent course! Nice trails with many sculptures! At the top with the children 👍👍👍!

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The bubbling spring of Stambruges and its mysteries.

The closest access to the boiling fountain is from the Hameau des Ecacheries side. At the end of rue du Bosquet, take the dirt road that goes into the forest. …

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Hanging gardens

Thuin Hanging Gardens are world famous! The small town of Thuin is located southwest of Charleroi and still belongs to Wallonia. The town is known for the Belfry, the medieval …

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View of the Étang de Virelles

At this point the dense forest thins out a little and you can enjoy a great view of the Étang de Virelles lake. The Aquascope Virelles is located on the …

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The nail tree of Stambruges

The two rag trees of Stambruges

There are now two of them carrying the wishes and hopes of recovery. The oldest, a black locust tree, fell to the ground in …

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Bois d'Angre

The Bois d'Angre, located in Honnelles, is a forest renowned for the Caillou-qui-Bique, a 370 million year old pudding rock. This forest is home to rich biodiversity with oaks, ash …

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Coupure Deweer

The Avelgem Scheldemeersen is now a combination of grassland, cultivated land and a diked Scheldt, but that used to be different. The Scheldt lakes were probably covered with shrubs after …

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Didn’t find what you were looking for?

Find even more amazing natural monuments in Hainaut by checking out the top Highlights region by region:

Ath Thuin Soignies Charleroi Schelde Mons Tournai

Explore more

Extend your search for the best caves by checking out these guides of the top ones in Hainaut:

Ardennes Liège Neufchâteau Marche-En-Famenne Bastogne Namur Virton Walloon Brabant Arlon

The Top 20 Natural Monuments in Hainaut

Le Caillou-qui-Bique

State Nature Reserve of the Mer de Sable

Marais d'Harchies-Hensies-Pommerœul Nature Reserve

Witches’ Trail – Sculpture Route in the Parc naturel du Pays des Collines

The bubbling spring of Stambruges and its mysteries.

Hanging gardens

View of the Étang de Virelles

The nail tree of Stambruges

Bois d'Angre

Coupure Deweer

Other adventures in Hainaut

Most popular routes in Hainaut

Most popular attractions in Hainaut

Get inspired with the komoot mobile app

Didn’t find what you were looking for?

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