Caves around Weltersburg offer unique natural and historical insights within this German municipality. The area features various cave formations, including those with geological significance and historical human habitation. These sites provide opportunities to explore natural phenomena and learn about the region's past. The landscape around Weltersburg combines natural beauty with educational points of interest.
Last updated: June 26, 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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this cave (man-made) is constantly being rebuilt
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Shortly before the puppies are born, the pregnant she-wolf looks for a cave in which she gives birth to her offspring and houses them for protection. A wide variety of loopholes are useful for this, such as deep riverbank hollows, cavities under fallen trees or rock overhangs, hollow tree trunks, a gap between rocks and so on. Sometimes wolves also use abandoned burrows of other animals such as bear caves or beaver dams. Often caves have been used by wolves for generations. A cave in Jasper National Park was used eight times in 15 years. Another on Ellesmere Island may be even older. Bones up to 783 years old have been found in it. In an ordinary wolf cave, the birth chamber is at the end of a tunnel that can be up to 5 meters long in soft earth. The cave itself is often slightly elevated from the rest of the tunnel. The birth chamber has a diameter of about 90cm and is about 60cm high. The cave entrance has a width of about 50cm to 70cm and a height of about 38cm to 50cm. Often the cave is located near a water source and at an elevated place so that the wolf can spot approaching enemies early. The alpha male stays outside the cave for protection and often plays the decoy to lure approaching predators such as bears and eagles away from the cave, whose prey can be a very young puppy. Although wolves often defend their den against wild predators, they will usually run away when humans approach them. Over the years, wolves change their burrows and relocate with their offspring, covering a distance of more than 1.6km. This happens either due to a parasitic infection of the cave or disturbance from humans or other animals.
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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 region offers fascinating geological features, most notably the Eternal Ice at Dornburg. This natural monument provides a pleasant cooling effect, especially on warm days, due to its persistent ice formations. An information sign explains the phenomenon, making it an educational stop.
Yes, the Bear cave is notable for its historical significance, as it's easy to imagine early humans inhabiting it. While entry is restricted due to bats, you can look inside. An information board details Neolithic finds and the cave's current bat residents. Another historical site is the Bärenloch Prehistoric Karst Cave, which was likely used as a shelter by Stone Age people, though it is also currently inaccessible.
The Eternal Ice at Dornburg is listed as family-friendly and offers an engaging educational experience for all ages. While some other caves like the Bear Cave are not accessible for entry, they still provide interesting viewpoints and historical context that can be enjoyed by families from the outside.
Many caves in the area, such as the Bear cave and the Bärenloch Prehistoric Karst Cave, are not accessible for entry due to bat protection or overgrown access, though you can often view them from the outside. The Eternal Ice at Dornburg is generally accessible for visitors to experience the phenomenon from designated viewing areas.
The Bear cave is currently home to bats, which is why entry is restricted. An information board at the site provides details about these fascinating creatures. Other caves may also serve as habitats for various local wildlife.
No, not all caves are open for entry. For instance, the Bear cave is closed to protect its bat inhabitants, though you can look inside. Similarly, the Bärenloch Prehistoric Karst Cave is also not accessible. The Eternal Ice at Dornburg allows visitors to experience the natural phenomenon from designated areas.
The Eternal Ice at Dornburg is particularly appealing on warm days, as the 'eternal ice' provides a refreshing cooling effect. For other caves, visiting during spring or autumn offers pleasant weather for exploring the surrounding natural areas.
The Weltersburg area offers various outdoor activities. You can find numerous running trails, such as those detailed in the Running Trails around Weltersburg guide. For cyclists, there are options for gravel biking, including routes like the 'View of Krombach Reservoir – Great Secker Pond loop', found in the Gravel biking around Weltersburg guide, and traffic-free bike rides, as highlighted in the Traffic-free bike rides around Weltersburg guide.
Yes, the region around Weltersburg is excellent for hiking. While specific hiking guides for the immediate cave areas are not listed, the general area offers many trails. You can explore various routes, including those suitable for running, which often overlap with hiking paths. Check out the Running Trails around Weltersburg guide for inspiration on routes like the 'Running loop from Guckheim'.
Visitors are often fascinated by the unique natural phenomenon of the Eternal Ice at Dornburg, especially its cooling effect on hot days. The historical intrigue of caves like the Bear cave, imagining early human inhabitants, also captivates many. The blend of natural beauty, educational opportunities, and the chance to observe wildlife (like bats) from a respectful distance are frequently highlighted.
While specific parking details for each cave are not provided, natural attractions in the Weltersburg area typically have designated parking spots or roadside parking nearby. It's advisable to check local signage upon arrival for the most accurate information regarding parking for individual cave sites.


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