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Belgium

Wallonia

Top 20 Natural Monuments in Wallonia

Best natural monuments in Wallonia include a diverse array of geological formations, ancient forests, and river valleys. This southern region of Belgium features a varied landscape, from the rugged Ardennes to serene lakes. These natural sites offer unique features for outdoor enthusiasts. Wallonia's natural heritage provides numerous opportunities for hiking and exploring.

Best natural monuments in Wallonia

  • The most popular natural monuments is Ninglinspo Valley, a gorge that features a stream flowing through a rugged valley with mini-waterfalls and carved rock pools. This site is known for its impressive round hikes in a beautiful landscape.
  • Another must-see spot is Trôs Marets Valley, a gorge that offers an idyllic hiking experience alongside a wild river. Visitors can expect a varied landscape suitable for families and hikers.
  • Visitors also love Bayehon Waterfall, a roughly nine-meter-high waterfall within a deep, wooded gorge. It is considered a highlight of the gorge, providing numerous photo opportunities and accessible hiking trails.
  • Wallonia is known for its waterfalls, gorges, and extensive nature reserves. The region offers a variety of natural monuments to see and explore, from dramatic geological formations to serene river landscapes.
  • The natural monuments in Wallonia are appreciated by the komoot community, with more than 2700 upvotes and over 1000 photos shared across more than 1000 highlights.

Last updated: April 28, 2026

Bayehon Waterfall

Highlight • Waterfall

The Bayehon Waterfall is a roughly nine-meter-high waterfall near the Belgian village of Longfaye, situated at an altitude of approximately 510 meters. Fed by the Ruisseau de Bayehon stream, it lies within a deep, wooded gorge crisscrossed by attractive hiking trails. The waterfall is also easily accessible via the nearby Moulin de Bayehon watermill, making it particularly appealing to families, as parking is available and the mill offers friendly service. The Bayehon Waterfall is considered the highlight of the gorge and provides numerous picturesque photo opportunities.

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Vaalserberg Three-Country Point

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The tri-border region (Drielandenpunt) is where Belgium, Germany and the Netherlands meet. It is also the highest point in the Netherlands (323 meters). An observation tower at the top gives an unobstructed view of the 3 countries.

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Trôs Marets Valley

Highlight (Segment) • Gorge

An absolutely idyllic spot on earth: Here you will hike through the beautiful Trô Marêts valley and be accompanied by the sound of the wild river.

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Brackvenn Moor Lakes

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What is often called a lake in the Fens is often e.g. Palsas.
The palsen or pingos in the High Fens were formed around 10,000 to 11,000 years ago at the end of the last ice age. When the ground froze deep down during the cold winters of the Ice Age, the wet ground expanded and frost mounds developed. Over the years these mounds grew and the soil material that was on top slid down the sides of the mounds and over time formed a ring-shaped wall around the mound of frost. With the end of the ice age, the ice melted, the frost mound sagged and the wall was preserved. The water in the middle is called bog scour or bog eye.
Source: euregio-im-bild.de/fotos/palsen-im-brackvenn-bei-m-tzenich.html

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With a height of no less than 322.4 meters above NAP, the Vaalserberg is the highest mountain in the Netherlands (with the exception of the mountains in the Caribbean). So you are standing on the roof of the Low Countries! The mountain is not only known for its height, but also for the three country point you will find here; here the borders of the Netherlands, Belgium and Germany meet. In addition, there are plenty of activities for young and old on and around the top, so hang out here for a while.

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Ninglinspo Valley

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Arrive early, one of the most beautiful hikes in the Ardennes.

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Durbuy — Old Town and Castle

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Nicknamed "the smallest town in the world", Durbuy is an open-air history book, illustrated by numerous buildings from all eras. A small town with medieval alleys where it is good to stroll.

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Venus' Bath

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This basin was formed by the erosion of the river or the power of the water naturally and over the course of thousands of years.

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Hohnbach Valley

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The yellow calamine violet can only be found in a few places in the three-country corner of Aachen because of its connection to soil containing heavy metals.

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Coo Waterfall

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The waterfall is one of the highest in Belgium with a drop of 15 meters. There is a staircase between the two waterfalls, from where you can admire the impressive flow of water masses. The falls are a tourist attraction so there are a few cafes nearby.

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Didada
June 18, 2025, Coo Waterfall

Adventure tours, amusement park, kayaking or just marveling, there can be a lot going on here.

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The Coo waterfall is artificial. Starting from a simple waterfall that appeared in the 15th century, the monks of Stavelot Abbey dug the large waterfall, crossing a meander of the river, to protect the village of Petit-Coo. The fact remains that it is very impressive and at its height of 15 meters is the pride of Belgium.

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Located on the banks of the Ourthe River, the village of Durby is picturesque thanks to its rich history and remarkably well-preserved architecture. It is considered the smallest village in the world. The downside is that it attracts large crowds during the summer months.

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The Vaalserberg has been included in the cycling classic Amstel Gold Race several times. The climb is then conquered once via the Dutch side (east side), as the eleventh climb after the Camerig and before the Gemmenicherweg. In the Amstel Gold Race the slope is referred to as Drielandenpunt. (Wikipedia)

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The highest point in the Netherlands coincides with the three-country point and is an important tourist attraction.

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One of the many beautiful spots in the valley. The many small waterfalls are wonderful. It is best to drive shortly after a rainy period so that there is enough water available.

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R.Bungartz
August 23, 2023, Bain de Vénus

This "bathtub" shows very well what the water can do with its natural power over the millennia.

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TS
August 22, 2023, Bain de Vénus

Very nice and entertaining!

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Frequently Asked Questions

What types of natural monuments can I explore in Wallonia?

Wallonia offers a diverse range of natural monuments, from dramatic geological formations and ancient forests to winding rivers and serene lakes. You can discover picturesque gorges like the Ninglinspo Valley with its mini-waterfalls, impressive cave systems such as the Caves of Han-sur-Lesse, and vast peatlands like the Hohes Venn Nature Reserve. The region also features stunning viewpoints, waterfalls, and unique limestone landscapes.

Are there natural monuments in Wallonia suitable for families?

Yes, many natural monuments in Wallonia are family-friendly. The Coo Waterfall is easily accessible and impressive for all ages. The Vaalserberg Three-Country Point offers a unique experience where three countries meet, with facilities and a viewing tower. The Caves of Han-sur-Lesse also provide guided tours suitable for families, often combined with a wildlife park visit.

Where can I find impressive geological formations in Wallonia?

For striking geological formations, visit the Fondry des Chiens near Nismes, often called the 'Grand Canyon of Belgium.' This dramatic doline features rugged limestone cliffs and deep caves formed by erosion. Another notable site is the Ninglinspo Valley, known for its moss-covered rocks and ancient Crahay Rocks, formed 300 million years ago.

What are the best natural monuments for hiking in Wallonia?

Wallonia is a hiker's paradise. The Trôs Marets Valley offers an idyllic hiking experience alongside a wild river. The Hohes Venn Nature Reserve provides extensive paths through peatlands and forests. For a more adventurous hike, the Ninglinspo Valley trail involves crossing streams and navigating steeper sections with cables.

Can I find waterfalls among Wallonia's natural monuments?

Absolutely. Wallonia is home to several beautiful waterfalls. The Bayehon Waterfall, a roughly nine-meter-high cascade within a deep, wooded gorge, offers picturesque photo opportunities. The Coo Waterfall is another impressive sight, one of Belgium's highest, with a 15-meter drop.

What outdoor activities are available near Wallonia's natural monuments?

Beyond hiking, you can enjoy various outdoor activities. The Lacs de l'Eau d'Heure, while artificial, offer a preserved natural setting for water sports like swimming, kayaking, and windsurfing. The waterfall hikes in Wallonia provide routes of varying difficulty. For cycling, explore the cycling routes in Wallonia, including paths on old railway lines in the High Fens, or try gravel biking.

Are there any natural monuments with panoramic views in Wallonia?

Yes, Wallonia boasts several natural viewpoints. Le Tombeau du Géant (The Giant's Tomb) near Botassart offers breathtaking panoramic views over the winding Semois River and surrounding forests. The Vaalserberg Three-Country Point also provides an observation tower for unobstructed views of the three bordering countries.

Which natural monuments are known for their biodiversity and wildlife?

The Fondry des Chiens is a hub of biodiversity, featuring large lime grasslands where rare wild orchids thrive and a haven for butterflies in summer. The Hohes Venn Nature Reserve, with its vast peatlands, supports unique ecosystems. Wallonia's national parks, such as the Semois Valley National Park and Entre-Sambre-et-Meuse National Park, are dedicated to protecting biodiversity and offer opportunities to observe local wildlife.

What is the best time of year to visit Wallonia's natural monuments?

While many sites are beautiful year-round, autumn is particularly stunning for places like Le Tombeau du Géant, where the forests display vibrant colors. Spring brings blooming wildflowers, especially in areas like the Fondry des Chiens with its wild orchids, and the daffodil meadows in the Hohnbach Valley. Summer is ideal for water activities at Lacs de l'Eau d'Heure and general hiking.

Are there any natural monuments that also have historical significance?

Yes, some natural sites are intertwined with history. The Vaalserberg Three-Country Point is a historical marker where three nations meet. The Durbuy Old Town and Castle, while primarily a settlement, is nestled within a natural setting, offering a blend of historical architecture and natural beauty. The Coo Waterfall's larger part was even artificially created by monks in the 15th century.

What makes the Hohes Venn Nature Reserve a unique natural monument?

The Hohes Venn Nature Reserve is unique for its vast peatlands and forests, creating a distinct landscape between the Ardennes and the Eifel highlands. It is the largest nature reserve in Belgium and includes the Signal de Botrange, Wallonia's highest point. Its unique ecosystem supports specific flora and fauna, making it an exceptional area for nature observation and tranquil hikes.

Where can I find a natural monument that feels like a 'fairytale' experience?

The Ninglinspo Valley is often described as a 'fairytale hike.' This picturesque stream flows through a rugged valley characterized by mini-waterfalls, moss-covered rocks, and carved rock pools with poetic names. The adventurous 6 km trail, with its wooden footbridges and stone crossings, offers a truly enchanting experience.

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