Caves near Härtlingen are primarily located in the surrounding Westerwald region and the nearby Eifel, offering a diverse range of subterranean experiences. These areas feature historically significant former mines, natural karst formations, and unique ice caves. The region's geology provides varied cave environments, from those used for industrial purposes to natural habitats. These sites offer insights into both natural geological processes and human historical activities.
Last updated: July 10, 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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While Härtlingen itself doesn't have major show caves, the surrounding Westerwald and Eifel regions offer several impressive options. The Eternal Ice at Dornburg is a natural monument known for its perpetually cool temperatures. Further afield, the Show Cave Autumn Labyrinth Breitscheid is Hesse's largest cave system with extensive stalactite formations, and the Birresborner Ice Caves in the Eifel are former basalt quarries famous for maintaining ice formations well into summer.
Yes, several caves are suitable for families. The Eternal Ice at Dornburg is a great educational experience with signs explaining the natural phenomenon. The Show Cave Autumn Labyrinth Breitscheid is designed for visitors of all ages with illuminated paths. The Birresborner Ice Caves and the Mühlsteinhöhlen Hohenfels-Essingen also offer accessible paths and historical insights that can engage families.
Many caves, especially show caves, are open year-round. However, for natural phenomena like the Eternal Ice at Dornburg or the Birresborner Ice Caves, visiting during warmer months (spring to autumn) can offer a refreshing contrast to the outside temperature. Some caves, like the Birresborner Ice Caves, are only accessible from April to October due to bat hibernation.
The region offers diverse geological formations. The Show Cave Autumn Labyrinth Breitscheid is famous for its extensive stalactites and stalagmites. The Eternal Ice at Dornburg showcases a unique cold trap effect. In the Eifel, the Buchenlochhöhle is a natural karst cave formed by groundwater, while the Birresborner Ice Caves and Mühlsteinhöhlen Hohenfels-Essingen are former basalt quarries and millstone mines, revealing human interaction with geological resources.
Absolutely. The Buchenlochhöhle in the Eifel has yielded archaeological finds from the Stone Age, including tools and bones of Ice Age animals. The Mühlsteinhöhlen Hohenfels-Essingen bear traces of millstone extraction by Romans and Franks. The Laubach Valley Slate Mines and Assberg Slate Mine offer insights into the region's industrial heritage, with the former now serving as bat winter quarters.
Cave temperatures are consistently cool, even in summer. It's advisable to wear warm layers, sturdy shoes with good grip, and possibly a light jacket. For natural caves or those with uneven terrain, a flashlight and helmet (sometimes provided or recommended, as for the Birresborner Ice Caves) can be beneficial.
Yes, the region offers various outdoor activities. For example, you can find numerous cycling routes, including traffic-free bike rides and gravel biking options, around Härtlingen. These routes often pass by natural attractions. You can explore options like the Traffic-free bike rides around Härtlingen or Gravel biking around Härtlingen for routes that might include or pass near some cave locations.
Visitors are fascinated by the unique physical phenomenon of the 'eternal ice,' which provides a pleasant cooling effect on hot days. Many appreciate the clear explanations provided by the on-site signs, making it an educational and memorable experience. The consistent cool temperatures, even in summer, are a highlight for many.
The Wolf Cave is a point of interest, often noted in hiking contexts. It is described as a man-made cave that is constantly being rebuilt. While it offers a glimpse into potential animal habitats, it's more of a natural point of interest for hikers rather than a developed show cave with visitor facilities.
Yes, several caves in the region serve as important bat habitats. The Laubach Valley Slate Mines are crucial winter quarters for various endangered bat species. The Bear cave is also known to house bats, and while it's not accessible for entry, you can often look inside and find information boards about the local bat population. The Birresborner Ice Caves are also a vital winter habitat for bats, which influences their seasonal accessibility.
While specific cafes directly at every cave entrance are not guaranteed, the towns and villages surrounding the cave locations, such as Dornburg, Breitscheid, Gerolstein, or Hohenfels-Essingen, offer various dining options. It's recommended to check local listings for cafes, restaurants, or pubs in these areas to plan your visit.


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