Best attractions and places to see around Udler include a variety of natural and historical sites within the Vulkaneifel region. This area is characterized by its volcanic landscape, featuring numerous maars and unique geological formations. Visitors can explore historical landmarks, observation towers, and converted railway tunnels. The region offers diverse opportunities for outdoor activities and cultural experiences.
Last updated: May 9, 2026
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Old Railway Tunnel "Großes Schlitzohr" near Daun At the end of the first decade of the 20th century, the railway tunnel was driven 560 meters through the mountain. 80 years later, it was converted into a cycle path. The tunnel contains several niches with rounded arches, through which the water seeping in above is drained. The sound of this water has been a part of this place for almost 100 years. Text / Source: Institut Denkunternehmung, Hörscheider Straße 20, 54552 Darscheid https://denkunternehmung.de/alter-eisenbahntunnel-grosses-schlitzohr-bei-daun
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The Daun Maars - 10,000-Year-Old Volcanic Lakes The Daun Maars were formed around 10,000 years ago from volcanic steam explosions. Hot lava rises from the Earth's interior and meets water, which suddenly evaporates. This blasts away entire mountain peaks. What remains is a deep crater that fills with water over the years and a wall of boulders surrounding the lake. The Daun Maars include the Gemünden Maar, the Weinfelder Maar, and the Schalkenmehrener Doppelmaar. One crater of the Schalkenmehren Maar has silted up over the millennia. The area is a nature reserve and a refuge for waterfowl and rare dragonfly species. Text / Source: deutschland-outdoor.der https://deutschland-outdoor.de/eifel/dauner-maare
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Weinfelder Maar The Weinfelder Maar, formed by volcanic activity around 20,000 to 30,000 years ago, is the highest of the three Daun Maars at 487 meters above sea level. The lake is 51 meters deep and has a diameter of 396 to 429 meters. An almost melancholic atmosphere surrounds the maar. Many legends surround the tranquil Eifel eye. A castle is said to have once stood on the site of the crater, where a count lived with his wife and only child. After returning home from a hunt, the castle had sunk as punishment for the woman's nastiness, and he found only a lake where a cradle miraculously floated his child safely to the shore. If you look at the dark surface of the water long enough, it is said that you can make out the outline of the castle. The German landscape painter Fritz von Wille was so fascinated by the Weinfelder Maar that he repeatedly immortalized it in his paintings. Among his favorite motifs was the small chapel on the north bank, dedicated to Saint Martin. It was once the parish church of the village of Weinfeld, which was ravaged by the plague in the 16th century. Anyone who rings the bells inside by pulling the ropes can make a wish. To this day, the associated cemetery is maintained and used by the local community of Schalkenmehren. This is also where its second name, Totenmaar, comes from. Donkeys and goats have been introduced to the Weinfelder Maar to regulate vegetation. The maar's unique flora and fauna are protected. Swimming and other water sports are prohibited in the Weinfelder Maar, but a nearly two-kilometer-long path makes it a wonderful place to explore on foot. Parking: Guests can park along the L64 either in the parking lot at the Weinfelder Maar or on the Maarsattel between the Weinfelder Maar and the Schalkenmehrener Maar. Text / Source: GesundLand Vulkaneifel GmbH, Leopoldstr. 9 A, 54550 Daun https://www.eifel.info/a-weinfelder-maar
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Nice view with markers for orientation. The tower, which was built in 1902, is only 11m high, but stands on top of the 560m high Mauseberg and is thus 166m above the Gemünder Maar, guaranteeing a magnificent view of the surrounding area.
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Beautiful view with an information board for orientation. The tower, built in 1902, is only eleven meters high, but stands at the top of the 560-meter-high Mäuseberg and is thus 166 meters above the Gemünder Maar. This guarantees a magnificent view over the surrounding area.
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A section of the Eifelsteig long-distance hiking trail runs right through the Dauner Maare. Very nice path past the witnesses of the volcanic past of the Eifel. https://www.eifelsteig.de/
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The hiking car park and the hiking map with an overview of the various routes are located at the Waldcafe. This is a great place to start your tour and enjoy a coffee at the end.
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Very beautiful Maar, more than 100m deep embedded in the "crater", the smallest of the three Dauner Maare offers a beautiful outdoor pool and the opportunity to explore the volcanic lake by boat. The forest café and the starting point for numerous hikes and tours are also located at the car park.
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The Udler region is primarily known for its unique volcanic landscape, part of the Vulkaneifel. This area is characterized by numerous maars, which are volcanic lakes formed by steam explosions. Notable examples include Schalkenmehrener Maar, the largest of the three Dauner Maars, and the picturesque Gemündener Maar. You can also find the active Geysir Wallender Born nearby.
For breathtaking panoramic views over the maars and the wide volcanic landscape of Eifel, visit the Dronke Tower on the Mäuseberg. This observation tower, erected in 1902, offers a direct view of the Gemündener Maar and is a popular spot for visitors.
Beyond its natural beauty, the region offers several historical sites. You can visit the impressive Cochem Castle, considered one of Germany's most captivating historic landmarks. Closer to Udler, explore the Manderscheid Lower Castle, or experience the unique history of the Großes Schlitzohr Tunnel, an old railway tunnel converted into a cycle path.
Udler is excellent for cycling, especially with its converted railway tunnels and scenic paths. The Großes Schlitzohr Tunnel offers a unique 560-meter ride through a historic structure. The region also features the Maar cycle path, allowing you to explore the volcanic lakes. For more routes, check out the Cycling around Udler guide.
Yes, the Udler area provides a variety of hiking trails. You can find easy walks around maars like Schalkenmehrener Maar, which has a beautiful circular path. More challenging routes lead up to viewpoints like the Dronke Tower on the Mäuseberg. Explore options in the Hiking around Udler guide for detailed routes.
Families visiting Udler have several engaging options. The Wildlife and Adventure Park Daun offers interaction with animals, while the Großes Schlitzohr Tunnel provides a fun and unique cycling experience. Many of the maars, such as Gemündener Maar and Schalkenmehrener Maar, also offer accessible paths and recreational areas suitable for all ages.
Yes, you can swim in some of the maars. The Gemündener Maar features an outdoor swimming pool and allows swimming in the maar itself, with boat rentals available. However, swimming and other water sports are prohibited in the Weinfelder Maar, which is a nature reserve.
The maars around Udler are unique geological formations, remnants of volcanic activity. For instance, Schalkenmehrener Maar is a rare double maar, consisting of a lake and an adjacent dry maar, formed around 10,000 years ago. The Weinfelder Maar, also known as Totenmaar, has a melancholic atmosphere and a historic chapel and cemetery on its banks, adding to its mystique.
The Vulkaneifel region around Udler is beautiful year-round, but for outdoor activities like hiking and cycling, spring, summer, and early autumn (April to October) generally offer the most pleasant weather. During these months, the trails are clear, and the natural landscapes are vibrant, making it ideal for exploring the maars and historical sites.
Many trails in the Udler area are dog-friendly, allowing you to enjoy the volcanic landscape with your canine companion. Circular paths around maars like Schalkenmehrener Maar are popular choices. Always ensure your dog is on a leash, especially in nature reserve areas, and be mindful of local regulations.
For mountain bikers seeking a challenge, the paths leading up to the Dronke Tower on the Mäuseberg are highly recommended. These routes are known for being beautiful but steep, offering a rewarding ride with stunning views over the maars as your prize.
The Großes Schlitzohr Tunnel offers a unique auditory experience. As you cycle or walk through this 560-meter-long former railway tunnel, you can hear the distinct sound of seeping water echoing through its niches with rounded arches, a sound that has been present for nearly a century.


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