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.
Last updated: April 28, 2026
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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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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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This "bathtub" shows very well what the water can do with its natural power over the millennia.
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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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.


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