Best caves around Elsoff (Westerwald) are primarily found within the broader Westerwald region, which is characterized by its diverse geological formations. This area features both natural caves, formed through processes like limestone dissolution and basalt cooling, and historical underground sites such as slate mines. These locations offer insights into the region's geological history and past industrial activities. The landscape around Elsoff (Westerwald) provides opportunities to explore unique subterranean environments.
Last updated: April 28, 2026
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The cave is hidden in a sheltered spot near the water, where you can easily imagine why the "cavemen" chose it as their place of residence. Today bats live there, so it is closed. But you can look inside and there is a bench and an information board about bats and the Neolithic finds.
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Simply fascinating and definitely worth a visit to the eternal ice. Pleasant cooling off on hot days and you can also linger here very well. A sign explains the phenomenon of "Eternal Ice" in a way that everyone can understand. We will definitely come back here.
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unfortunately you cannot enter the cave
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Interesting geological feature. Well signposted and you can feel the cold air immediately.
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If the temperatures rise above 30 degrees and make us sweat a lot, then a visit to the Eternal Ice in Dornburg is recommended, where the outside temperatures are a pleasant 20 degrees and very close to the mountain even drop to 3 degrees. Everyone has probably heard of the eternal ice in Dornburg. I was also familiar with it, but unfortunately I had never been there myself in all those years. Due to a professional appointment, I was lucky enough to get to know this place for the first time. Coming from Frickhofen in the direction of Wilsenroth, there is a small car park on the right after the building yard, from which it is 300 meters to the Eternal Ice. The closer I get to the spot, the noticeably cooler it gets. Cool air from the mountain The place itself seems quite inconspicuous at first. Two large, barred openings allow a view of the mountain. You are at the end of a slope covered with basalt boulders. A clear draft can be felt in front of the openings. There is still snow in one of the openings. It was shoveled in in winter so that visitors to this place can get an idea of how cold it is in the mountain, Joachim Habel from the Frickhofen Culture and History Association explained to me. The thermometer goes down in no time and stays at 3 degrees Celsius. It was a funny coincidence, because only one day later the Hessenschau was there and reported on the coolest place in Hessen. Since the eternal ice is a unique natural phenomenon in the Westerwald, it is part of the Geopark Westerwald-Lahn-Taunus. In 1839, while demolishing basalt rock, workers discovered icing beneath the mass of rubble. Deep in the mountain, the rocks are frozen to a depth of eight meters. Now with the hot temperatures, this ice is not visible. It would also make no sense to remove stones, because then the ice would melt very quickly because of the lack of insulation. The mountain made of basalt rock has numerous cracks and crevasses that promote ice formation. Furthermore, this is favored by the large difference in height between the inlet and outlet openings for the air. These are all prerequisites for a chimney effect to occur. The rubble on the slope has a heat-insulating effect. The incoming warm air from outside penetrates the mountain and cools down. Cold air is heavier and sinks downwards - thereby drawing new air into this "chimney" from above. The cold air flows back out at the two ends of the tunnel. This cool draft can be felt very well when you stand in front of it. From there it is worth a slight climb to the Hildegardisfelsen, from which there is a wonderful view. The Hildegardis chapel and the fountain as well as the Celtic wall at the former Dornburg can also be discovered there. They are all part of the Blasiussteig. An interesting area on the doorstep and a recommended visit given the current temperatures.
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The cave is a cultural monument and is among other things inhabited by bats. It is closed with a grille and is therefore not open to the public.
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The Westerwald region features diverse geological formations. You can find natural caves formed by limestone dissolution, such as the Heinzelmann Caves, and those resulting from basalt cooling, like the Eternal Ice at Dornburg. The area also has historical mining sites, offering insights into both natural processes and past industrial activities.
Yes, the region offers several natural caves. The Heinzelmann Caves, for instance, were formed naturally through the chemical dissolution of limestone and feature numerous head-sized holes in a karst rock face. Another notable natural phenomenon is the Eternal Ice at Dornburg, where ice forms deep within basalt rock, maintaining cool temperatures even in summer.
The Eternal Ice at Dornburg is a natural monument known for its unique geological phenomenon where ice forms deep within basalt rock. This site maintains a cool temperature year-round, offering a distinct natural experience and a pleasant cooling effect on hot days. It's a fascinating example of a natural 'chimney effect' that creates and preserves the ice.
Yes, the Assberg Slate Mine (Dachschiefergrube Assberg) is a significant historical underground site. It is believed to be the oldest and largest publicly accessible slate mine in the Westerwald, with sections extending approximately 240 meters in length and 70 meters in width. Visitors can gain insights into traditional slate mining that shaped the region for centuries. It's part of the National Geopark Westerwald-Lahn-Taunus.
The Bärenloch Prehistoric Karst Cave is believed to have been used by Stone Age people. While access is restricted by a grid, it provides a glimpse into prehistoric human activity in the region. Similarly, the Bear cave historically served as a shelter and offers information about Neolithic finds, though it is now a bat habitat and not accessible inside.
For a family-friendly experience, the Nibelungen Hall and 'Dragon World' offers a unique attraction. It includes a themed 'Dragon Cave' and a reptile zoo with various animals, combining cultural elements with wildlife. This site is open from March to November and provides an engaging visit for families interested in legend and nature.
The caves and underground sites in the Westerwald are often located near popular outdoor routes. For example, the Heinzelmann Caves are along the scenic HöhenLuft hiking trail, and the Assberg Slate Mine is directly on the Westerwald-Steig, Druidensteig, and Marienwanderweg. You can find many hiking, road cycling, and gravel biking routes around Elsoff (Westerwald) to explore the surrounding landscape. For more details, check out the Hiking around Elsoff (Westerwald) guide.
Yes, several caves are integrated into hiking networks. The Heinzelmann Caves are a natural point of interest along the HöhenLuft hiking trail. The Assberg Slate Mine is conveniently located on major trails like the Westerwald-Steig, Druidensteig, and Marienwanderweg, making it accessible for hikers. You can discover various hiking routes in the area by visiting the Hiking around Elsoff (Westerwald) guide.
Visitors particularly enjoy the unique natural phenomena, such as the cooling effect and geological insights offered by the Eternal Ice at Dornburg. The historical significance of sites like the Assberg Slate Mine and the prehistoric connections of the Bärenloch Prehistoric Karst Cave are also highly appreciated. The komoot community has shared over 520 photos and given more than 940 upvotes, highlighting the appeal of these diverse underground experiences.
Many sites, like the Nibelungen Hall and 'Dragon World', are open from March to November. The Eternal Ice at Dornburg is particularly appealing on hot days for its natural cooling effect. For historical mines and natural caves, accessibility can vary with weather, but generally, spring through autumn offers pleasant conditions for exploring the surrounding trails and sites.
Yes, the Basalt Cave is noted by visitors as being 'really' off the beaten track, requiring a bit of effort to reach but rewarding for those who make the journey. Similarly, the Basaltstein Cave is described as a nice little cave that is somewhat out of the way, offering a quieter exploration experience.
For publicly accessible sites like the Assberg Slate Mine, independent exploration is generally permitted during opening hours. However, for natural caves that are not developed for tourism, especially those with restricted access like the Bärenloch Prehistoric Karst Cave or the Bear cave (which is a bat habitat), access may be limited or prohibited to protect the environment or for safety reasons. Always check local regulations or official websites for specific access requirements.


Extend your search for the best caves by checking out these guides of the top ones around Elsoff (Westerwald):