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Liège

Top 20 Natural Monuments in Liège

Natural monuments in Liège province showcase a diverse landscape, from ancient moorlands to intricate cave systems and significant geological formations. The region's natural heritage includes cascading waterfalls, deep gorges, and unique geological sites. These locations offer varied experiences for nature enthusiasts, highlighting the area's long-term ecological and geological processes. Liège provides opportunities to explore river valleys, high-altitude points, and historical natural features.

Best natural monuments in Liège

  • The most popular natural monuments is Trôs Marets Valley, a gorge that…

Last updated: May 29, 2026

Bayehon Waterfall

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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 …

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Vaalserberg Three-Country Point

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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 …

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Trôs Marets Valley

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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 …

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Reinhardstein Waterfall

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The waterfall in the immediate vicinity of Reinhardstein Castle is the highest waterfall in Belgium at 60 meters. The descent into the valley is worthwhile for a photo opportunity.

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Brackvenn Moor Ponds

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In the area of the Brackvenn near Mützenich there are always wonderfully situated moor lakes, some of which, the so-called Palsas (Palses), are witnesses to the Ice Age.

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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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Hohes Venn Nature Reserve

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The High Fens is a unique moorland landscape for hiking and cycling.

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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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Bernd 🌲🦌🍄🥾
November 8, 2023, Brackvenn Moor Ponds

After about 9 km, the Getzbach feeds the Wesertalsperre with the purest peat water, a dark, red-brown water. The brown color comes from the content of dissolved iron and manganese and organic substances in the raised bog. The acids produced when the moor vegetation decomposes dissolve iron and manganese from the rocky subsoil. Because the water is extremely acidic, only water striders, water beetles and other insects can live in it. You will look in vain for fish here.

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Gerda
September 14, 2023, Brackvenn Moor Ponds

Many small moor lakes make the Brackvenn a particularly beautiful tour section

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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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As early as the late Middle Ages, the border of the former Aachen Empire, fortified with the Aachen Moat, ran from south to north across the ridge of the Vaalserberg. From 1839 to 1919, the Vaalserberg, with the disputed area of Neutral Moresnet as the fourth country, was even a four-country corner (Vierlandenpunt), which is still remembered in the name of the access road on the Dutch side - Viergrenzenweg. During the First World War, from 1915 to 1918, the high-voltage border barrier stretched along the Belgian-Dutch border for a length of 300 kilometers from the then four-country corner on the Vaalserberg to the Belgian North Sea coast near Knokke. The German invasion of Belgium in 1914 via Gemmenich to Diksmuide, which brought much suffering to the Belgian population, is commemorated by a memorial made of compressed war material at the southern tip of the Vaalserberg, called Via Dolorosa.

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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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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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Frequently Asked Questions

What are some unique geological features to explore in Liège province?

Liège province offers several fascinating geological sites. The Mount Saint Peter (Montagne Saint-Pierre/Caestert Plateau) is known for its limestone composition and flint nodules, with a history of flint mining since Neolithic times. You can also visit the Geological Wall near Comblain-au-Pont, which visually represents 540 million years of Belgian geological history through a 'carpet' of stone layers.

Are there family-friendly natural monuments in Liège?

Yes, several natural monuments in Liège are suitable for families. The Bayehon Waterfall is easily accessible via the nearby Moulin de Bayehon watermill, offering parking and friendly service. The Vaalserberg Three-Country Point, with its observation tower, is also considered family-friendly. Additionally, the Coo Waterfall and the Hohes Venn Nature Reserve are popular choices for families.

What kind of outdoor activities can I do near Liège's natural monuments?

The natural monuments in Liège are excellent starting points for various outdoor activities. You can find numerous hiking trails, from easy to challenging, such as those in the Trôs Marets Valley or the Ninglinspo Valley. The Ourthe River in the Ortho Valley provides opportunities for canoeing and kayaking. For cycling enthusiasts, there are gravel biking and MTB trails available, including routes like the 'High Fens and Two Dams Loop' or the 'New Wolfsbusch round'. You can explore more options for easy hikes, gravel biking, and MTB trails in Liège.

Where can I find impressive waterfalls in Liège province?

Liège province is home to several beautiful waterfalls. The Bayehon Waterfall, approximately nine meters high, is nestled within a deep, wooded gorge near Longfaye and offers picturesque photo opportunities. Another notable waterfall is the Coo Waterfall, a popular and family-friendly attraction. You can also discover the Venus' Bath, a unique basin formed by river erosion.

Can I visit a place where three countries meet in Liège?

Yes, the Vaalserberg Three-Country Point is a unique geographical landmark where Belgium, Germany, and the Netherlands converge. It is also the highest point in the Netherlands. An observation tower at the summit provides unobstructed views across all three countries, making it a popular spot for visitors.

What is the High Fens region known for?

The High Fens (Hohes Venn Moor) is an extensive moorland characterized by thick, velvety moss pillows and a unique ecosystem where peat moss thrives. It features common heather, bell heather, sour grass, rushes, and sedges. Geologically, it forms the core of the 'Stavelot massif,' containing some of the oldest geological layers. Wooden boardwalks allow visitors to traverse this distinctive landscape, which is an important site for understanding long-term ecological and geological processes.

Are there any cave systems to explore in Liège?

Yes, the Caves of Remouchamps are a natural gem in the province, famous for housing Belgium's only navigable underground river, the Rubicon. Visitors can embark on a unique journey, first on foot through various rooms and galleries, and then by boat through narrow passages. Notable features include the 'Cathedral' room and the 'Palm Tree' formation.

What are some good hiking trails in the natural monuments of Liège?

Liège offers numerous scenic hiking trails. The Ninglinspo Walk is a popular spot with paths ranging from 7 km to 14.6 km, winding through stunning scenery with streams and forests. The Trôs Marets Valley offers an idyllic hike alongside a wild river, known for its natural and primeval scenery. The High Fens also provide unique trails, often with wooden boardwalks over the moorland.

Are there dog-friendly natural monuments or walks in Liège province?

Many natural areas in Liège province are dog-friendly, though specific rules may apply in certain nature reserves. The hike through the Trôs Marets Valley is explicitly mentioned as suitable for hikers with dogs. It's always advisable to check local regulations or signage at the specific natural monument you plan to visit, especially regarding leash requirements.

What is the best time of year to visit the natural monuments in Liège?

The natural monuments in Liège can be enjoyed year-round, but each season offers a different experience. Spring brings lush greenery and blooming flora, while summer is ideal for longer hikes and outdoor activities. Autumn showcases vibrant fall foliage, particularly beautiful in forested gorges like the Ninglinspo Valley. Winter can offer serene, snow-covered landscapes, especially in the High Fens, though some paths might be slippery or require appropriate gear.

Are there any natural monuments with historical significance?

Yes, the Mount Saint Peter (Montagne Saint-Pierre/Caestert Plateau) is a significant nature reserve with a rich history. It was extensively mined for flint since Neolithic times, and an extensive network of mining tunnels once stretched 200 kilometers. Today, abandoned quarries highlight its geological interest and historical past.

What should I wear when visiting natural monuments in Liège, especially for hiking?

When visiting natural monuments in Liège, especially for hiking, sturdy shoes with good grip are essential, as paths can be root-covered and slippery, particularly in wet weather. Layered clothing is recommended to adapt to changing conditions, as temperatures can vary, and the High Fens, for example, can have colder and wetter climates. Waterproof outerwear is also advisable, especially during cooler or rainy seasons.

Where can I find scenic viewpoints among Liège's natural monuments?

For panoramic views, the observation tower at the Vaalserberg Three-Country Point offers unobstructed vistas across Belgium, Germany, and the Netherlands. Many hiking trails through gorges like the Ninglinspo Valley and the Trôs Marets Valley also feature numerous viewpoints along the way, showcasing the stunning Ardennes scenery and river landscapes.

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