Best natural monuments around Hillesheim are found within the Kalkeifel, a region recognized for its unique geological formations and karst landscapes. Situated in the Volcanic Eifel Nature and UNESCO Global Geopark, the area offers diverse natural features. While Hillesheim itself features the renatured Hillesheimer Bach, the wider region provides significant geological wonders. These natural monuments offer insights into Earth's history and varied outdoor experiences.
Last updated: June 23, 2026
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On the way to the Dreimühlen waterfall, which is well-known beyond the Vulkaneifel region and a popular excursion destination, the hiker sees the limestone rock formation towering over the water a little beforehand. It's a bit reminiscent of the Swabian Jura, as someone told me on the way today.
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The karstified limestone cliffs are the first highlight on the path from the parking lot to the waterfall. Here, the stream has carved its way through the limestone, creating the rock face. The limestone originated as a deposit of dead marine organisms on the seabed of a shallow ocean that covered this area millions of years ago. Later, the ground was uplifted by tectonic processes. Limestone reacts with acid and is therefore dissolved by rainwater and surface water, which is slightly carbonated due to the CO2 in the air. This process creates weathered formations and caves. The formation of the Dreimühlen Waterfall is also related to this process.
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Beautiful rock face to see.
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For information about the limestone cliffs, see e.g. https://kreis-ahrweiler.de/kvar/VT/hjb1960/hjb1960.54.htm
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Imposing limestone wall behind the Nohner Mill
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The so-called Dreimühlen waterfall is also known as the Nohn waterfall. The name Nohn waterfall comes from the waterfall's proximity to the town of Nohn. The houses on the outskirts of Nohn are only a few hundred meters above the waterfall. Most people talk about the Dreimühlen waterfall, however. The name Dreimühlen comes from a former castle called Dreimühlen. Today, however, only the remains of the walls are said to remain. We looked for the former castle on our trip, but couldn't find anything of it. The waterfall in the Eifel is located between the towns of Üxheim, Kerpen and Nohn. Although the other large towns in the Eifel are not located here, many visitors come here. Some of them travel especially to visit the waterfall. The Dreimühlen waterfall is one of the most visited Eifel attractions. Almost every holidaymaker in the area comes to the waterfall at least once during their Eifel vacation. In addition, many day tourists travel from outside, making it the most visited waterfall in the Eifel. They all want to see the unique natural wonder.
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Nice entrance to hiking tours to the waterfall
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The first highlight right at the parking lot. This is also where the path to the waterfall starts
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The region offers several highly-rated natural monuments. Among the most popular are the Dreimühlen Waterfall, a unique 'growing' waterfall formed by limescale deposits. Visitors also frequently explore the Buchenloch Cave, known for its Ice Age findings, and the impressive Gerolsteiner Dolomiten Rock Formations, which offer breathtaking views over the Kyll valley.
The area around Hillesheim, situated in the Kalkeifel and Volcanic Eifel Nature and UNESCO Global Geopark, is rich in geological wonders. You can explore the Gerolsteiner Dolomiten Rock Formations, which are remnants of ancient subtropical reefs from 380 million years ago. Another fascinating site is the Arensberg near Zilsdorf, a Tertiary volcanic peak where you can walk through a tunnel to see the interior of a former volcano, revealing layers from two distinct eruptions.
Yes, several natural monuments are suitable for families. The Dreimühlen Waterfall is an accessible and engaging spot for all ages. The View of Gerolstein from the Munterley, part of the Gerolsteiner Dolomites, offers stunning vistas and is often enjoyed by families. Additionally, the renatured Hillesheimer Bach in Hillesheim itself provides a water-themed play area and recreational space for children.
The region around Hillesheim offers diverse outdoor activities. You can find numerous running trails, such as the 'Little Bolsdorf Museum – Bolsdorfer Valley loop', which are great for exploring the local landscape. For cyclists, there are road cycling routes like the 'Hillesheim City Wall – Kerpen Castle loop' and gravel biking options including the 'View of Salm – View of Bertrada Castle loop'. You can find more details on these activities and routes in the Running Trails around Hillesheim, Road Cycling Routes around Hillesheim, and Gravel biking around Hillesheim guides.
Absolutely. The Gerolsteiner Dolomiten area is particularly well-suited for hiking. The 'Gerolsteiner Dolomiten Acht' is a popular route that combines two premium trails, the Felsenpfad and Keltenpfad, allowing you to hike through a fossilized coral reef and enjoy diverse landscapes. The Gerolsteiner Dolomiten Rock Formations are a highlight along these paths.
For breathtaking panoramic views, head to the View of Gerolstein from the Munterley. This spot, located on a Devonian reef, offers fantastic vistas over Gerolstein, the Kyll valley, and far into the Volcanic Eifel. The Gerolsteiner Dolomiten Rock Formations themselves, including Munterley and Hustley, are iconic landmarks providing impressive perspectives.
Yes, the Buchenloch Cave is a significant historical site. Excavations in the 19th century revealed tools and animal bones from the Ice Age, indicating it provided shelter to Stone Age humans around 30,000 years ago. The Gerolsteiner Dolomiten also have historical context, as Stone Age people settled there, evidenced by findings near the Buchenloch Cave.
The natural monuments are generally accessible year-round, but spring through autumn offers the most pleasant weather for outdoor activities like hiking and cycling. If you plan to visit the Buchenloch Cave, be aware that it should not be entered between October 1st and March 31st to avoid disturbing hibernating bats.
The natural monuments around Hillesheim are special due to their unique geological history and diverse formations. They showcase the region's past as a subtropical shallow sea, forming ancient reefs like the Gerolsteiner Dolomiten, and its volcanic activity, visible at sites like the Arensberg. The area also features hydrological wonders such as the 'growing' Dreimühlen Waterfall and the renatured Hillesheimer Bach, offering a blend of natural beauty and scientific interest.
Beyond the well-known sites, the Arensberg near Zilsdorf offers a unique experience as a Tertiary volcanic peak where you can literally walk inside a former volcano. While not formally classified as a 'natural monument,' the renatured Hillesheimer Bach within Hillesheim itself is a valuable natural and recreational space, demonstrating successful ecological restoration and providing a pleasant environment.
Visitors frequently praise the stunning views, especially from spots like the Munterley, which offers a fantastic panorama over Gerolstein and the Kyll valley. The unique geological formations, such as the Gerolsteiner Dolomiten, are often highlighted for their beauty and the insights they provide into Earth's history. The Dreimühlen Waterfall is consistently described as a 'real small and nice surprise' and a 'must-visit' for its distinctive 'growing' nature.
Many of the natural monuments and surrounding trails in the Eifel region are dog-friendly, allowing you to explore with your canine companion. For example, the hiking routes around the Gerolsteiner Dolomiten Rock Formations are popular for walks with dogs. It's always advisable to keep dogs on a leash, especially in nature reserves, and to respect local regulations and wildlife.


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