Best natural monuments in Rhein-Erft-Kreis are found west of Cologne in North Rhine-Westphalia, a region characterized by its diverse natural landscapes. The area is largely encompassed by the Naturpark Rheinland, which preserves its natural heritage. Visitors can explore a variety of natural monuments, including recultivated mining landscapes, ancient trees, and a chain of lakes. These sites offer insights into the region's ecological transformation and historical significance.
Last updated: May 13, 2026
Highlight • Lake
Translated by Google •
Tip by
Highlight • Lake
Translated by Google •
Tip by
Sign up now to discover places like this
Get recommendations on the best single tracks, peaks, & plenty of other exciting outdoor places.
Sign up for free
Highlight • Lake
Translated by Google •
Tip by
Highlight • Lake
Translated by Google •
Tip by
Highlight • Lake
Translated by Google •
Tip by
Highlight • Lake
Translated by Google •
Tip by
Highlight • Viewpoint
Translated by Google •
Tip by
Highlight • Lake
Translated by Google •
Tip by
Highlight • Viewpoint
Translated by Google •
Tip by
Highlight • Lake
Translated by Google •
Tip by
Sign up for free to discover even more natural monuments in Rhein-Erft-Kreis.
Sign up for free
Already have an account?
Start today with a free account
Your next adventure awaits.
Login or Signup
Popular around Rhein-Erft-Kreis
Rhineland Way of St. James – A pilgrimage week
Wasserburgen-Route — A ride through Germany's Castle Country from the Rhine to the Eifel and back
Cycling by Numbers – flexible rides in the Radregion Rheinland
The National Natural Landscapes in Nordrhein-Westfalen
To palaces and castles - rides in the Rheinland cycling region
Family-friendly hikes in the south of Cologne
Marvellous views and varied scenery – cycling in the Rhineland
Hike from Cologne to the Eifel – Roman Canal Trail
Close to water – cycling in the Rhineland cycling region
Naturpark Rheinland - Our most beautiful hiking trails
Lake Franziskus is an artificial body of water. Lake Franziskus is primarily fed by groundwater flowing in from the surrounding area.
15
0
The Hambach opencast mine is one of three remaining active opencast mines in the Rhenish lignite mining area. It is the largest lignite mine in Europe and is located in the middle of the lignite mining area between the municipality of Niederzier and the town of Elsdorf. The Hambach opencast mine was started in 1978 near the Niederzier district of Hambach and is over 350 meters deep. 1.35 billion tons of brown coal are stored beneath its 85 square kilometer mining field. Around 40 million tons of coal are mined every year.
7
0
Most of the pictures still show an old jetty that leads crooked and crooked onto the water. (Unfortunately) it no longer exists. It was replaced by a straight and shorter bridge. But it's still a nice place to unwind on the jetty...
2
0
"The Untersee is an artificially created body of water in Brühl. Brown coal was mined in the region from the end of the 19th to the middle of the 20th century. From 1925 onwards, measures began to recultivate the areas. The existing opencast mine holes filled with groundwater and were largely left to further development. In this way, the Untersee was created in 1965 in the southern district. It was designated as a landscape protection area in 1972 and has been part of the Obersee, Mittelsee and Untersee FFH and nature reserve in the Ville lake chain since 2003. In the northeast and southeast there are contaminated sites in the form of overburden, brown coal ash and phosphate-containing residues..." CONTINUED and FURTHER INFORMATION: https://de.wikipedia.org/wiki/Untersee_(Br%C3%BChl)
2
0
A very nice view of the lake. There's definitely a lot going on here in the summer when the weather is fantastic. The footbridge is an ideal photo opportunity😊
5
0
A view of the Kasterer See is worthwhile at any time of the year. Especially in autumn, when the colors of the leaves start to play
9
0
Depending on your condition and time, the Heider Bergsee can be circumnavigated on a short walk of around six kilometers or combined with other waters in the Villeseen landscape on a longer hike.
19
1
Lake Franziskus is one of more than two dozen bodies of water in the "Ville" region between Brühl and Liblar, offering hikers wonderful variety during walks in the woods. Historically, this area, now a protected landscape within the Rhineland Nature Park, was formerly a mining area. Brown coal was mined here in open-cast mines long ago.
12
0
Rhein-Erft-Kreis boasts a diverse range of natural monuments. You can find ancient trees, such as the 'Thousand-Year-Old Mulberry Tree' in Brauweiler Abbey Park, as well as unique landscapes like the recultivated spoil dump of Glessener Höhe. The region is also known for its numerous lakes, which originated from former lignite mines, and remnants of old forests and hollow ways.
Yes, many natural monuments in Rhein-Erft-Kreis are family-friendly. The Villeseen (Ville Lake Chain) offers excellent options. For instance, Lake Liblar is known for its clean bathing water and recreational opportunities, while Obersee and Middle Lake provide tranquil settings for walks and observing water birds. These areas often have circular routes suitable for prams and offer a blend of nature and activities.
For expansive panoramic views, the Glessener Höhe is highly recommended. As the highest elevation in the Villerücken, it offers distant vistas towards Cologne and Bonn on clear days. The ascent via the 'Himmelsleiter' (Stairway to Heaven) adds to the experience, leading to a summit cross and benches to enjoy the scenery.
Yes, you can. Lake Liblar is particularly well-known as one of the cleanest bathing lakes in the Cologne/Bonn region, offering excellent swimming opportunities. Other lakes like Heider Berg Lake also provide options for swimming during the summer months.
While specific accessibility details vary, many of the lake areas, such as Kasterer Lake, feature well-maintained paths that are generally suitable for wheelchairs or prams. The circular routes around the Villeseen often provide relatively flat terrain, making them more accessible for a wider range of visitors.
The Villeseen are particularly rich in wildlife. You can observe a variety of migratory and breeding water birds, as well as a high biodiversity of dragonflies. The lakes also boast unique aquatic flora, such as characeae lawns, which are significant for conservation. The old forest remnants provide habitats for local forest wildlife.
Absolutely. The natural monuments in Rhein-Erft-Kreis are integrated into a network of outdoor activities. For hiking, you can explore routes like the 'Naturpark Rheinland - Lake Round' or 'Around Heider Bergsee'. Cyclists can find numerous paths around the lakes and through the recultivated landscapes, including gravel biking routes like 'Terra Nova Speedway' near Glessener Höhe. You can find more details on these activities in the Hiking in Rhein-Erft-Kreis and Road Cycling Routes in Rhein-Erft-Kreis guides.
Many natural monuments in the region have a unique historical context, particularly those related to former lignite mining. The Villeseen, including Lake Liblar and Untersee, are former opencast mines that have been successfully recultivated into thriving ecosystems. The 'Thousand-Year-Old Mulberry Tree' in Brauweiler Abbey Park offers a direct connection to centuries of local history and legend, intertwined with the abbey's founding.
Visitors frequently praise the tranquil natural surroundings and the opportunities for relaxation. Many appreciate the well-maintained circular routes around lakes like Obersee and Heider Berg Lake, which are perfect for walks. The panoramic views from Glessener Höhe are also a highlight, as is the chance to observe diverse water birds and unique plant life.
Many areas around the natural monuments, especially the lake trails, are dog-friendly. For example, the Jetty at the Untersee is noted as dog-friendly. However, it's always advisable to keep dogs on a leash, especially in nature protection areas, and to check local signage for specific regulations at each location.
Hollow ways are ancient paths deeply eroded over centuries by foot traffic, animals, and carts, often found in loess soils. They are significant for their ecological value, creating unique microclimates and habitats, and for their cultural-historical importance as old transportation routes. The Rhein-Erft-Kreis includes one designated hollow way as a natural monument, offering a glimpse into historical landscapes and peaceful walking routes.
The natural monuments in Rhein-Erft-Kreis can be enjoyed year-round. Spring and summer are ideal for swimming and water sports in the lakes, and for observing blooming flora and active wildlife. Autumn offers beautiful foliage, while winter provides peaceful, crisp walks, especially around the lakes. The panoramic views from Glessener Höhe are impressive in any season, weather permitting.


Find even more amazing natural monuments in Rhein-Erft-Kreis by checking out the top Highlights region by region:
Extend your search for the best caves by checking out these guides of the top ones in Rhein-Erft-Kreis: