Best caves around Klein Gladebrügge are primarily centered on the unique geological formation of the Segeberger Kalkberghöhle. This natural gypsum cave is the only hard rock hill and natural cave system in Schleswig-Holstein. The area also features attractions related to its significant bat population and historical importance. Visitors can explore these underground sites and learn about the region's natural and cultural heritage.
Last updated: June 28, 2026
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Exploring the cave is only possible as part of a guided tour.
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The cave is open to visitors in summer. In winter (from October to March), absolute
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The famous Bat Cave (Kalkberghöhle) in Bad Segeberg is the largest natural winter roost for bats in Central Europe. It is located directly beneath the Segeberger Kalkberg.
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The bat cave with the attached exhibition -Noctalis- is definitely worth a visit for young and old alike. The best time is in April, as some bats are still flying around in the cave. In summer, they have left their winter quarters and return in autumn. Please check the opening hours on the website.
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Unfortunately, the now visible part of the Kalkberg is only a sad remnant of the once imposing hill, upon which once stood one of the few hilltop castles in Northern Germany. How different would the town's (tourist) development have been if there had been no intensive limestone mining and gypsum extraction, no Thingstätte (place of worship), and no Karl May Festival? A local historian and Hamburg's Hafencity University have undertaken a joint project on the Kalkberg and the Siegesburg castle on it, taking a virtual journey back in time to the era before both disappeared. A foretaste of the impressive result of this collaboration can be seen here: https://www.kreismuseum-segeberg.de/se1644/.
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Wild West feeling in the north. Saloons, restaurants, souvenirs.
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Tip: The evening Karl May events end with fireworks.
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Tip: The 91 m high limestone mountain is not made of lime (calcium carbonate) but of gypsum (calcium sulphate).
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The Kalkberg in Bad Segeberg is geologically unique as it's not made of chalk, but gypsum, forming the cap of a salt diapir. It is the only natural cave system in Schleswig-Holstein, discovered during gypsum quarrying. This makes it a significant natural monument in the region.
The Segeberger Kalkberghöhle is primarily open during the summer half of the year, typically from April to September. It closes during the winter months to protect the bats that hibernate there. Visiting during the open season ensures you can take a guided tour.
Yes, the Segeberger Kalkberghöhle and the adjacent Noctalis Bat Centre are very family-friendly. Guided tours of the cave offer an educational experience, and the Noctalis centre allows children and adults to learn more about bats and even observe them. Many visitors find it a worthwhile experience for all ages.
The Segeberger Kalkberghöhle is a crucial habitat for bats, housing up to 30,000 bats during their winter hibernation. While the cave is closed during winter, you can learn extensively about these fascinating creatures at the Noctalis Bat Centre, which is open during the cave's operating season. Some bats may still be visible in the cave during early spring.
Yes, the Kalkberg itself has historical importance, with a castle built on it in 1137. The area is also known for the open-air arena that hosts the Karl May Festival. The nearby town of Bad Segeberg is often referred to as the 'City of Karl May and Bats' due to these connections.
The temperature inside the Segeberger Kalkberghöhle remains constant at around 10 degrees Celsius (50 degrees Fahrenheit) year-round. Even on a warm day, it's advisable to bring a light jacket or sweater to stay comfortable during the guided tour.
The Segeberger Kalkberghöhle is located in Bad Segeberg, which is accessible by public transport. You can typically reach Bad Segeberg by train or bus, and the cave complex is within walking distance or a short local bus ride from the town center. It's best to check local transport schedules for the most current information.
The area around Bad Segeberg offers various outdoor activities. You can find numerous cycling routes, including road cycling, gravel biking, and traffic-free bike rides. Many routes offer scenic views of the Segeberger Kalkberg and the surrounding lakes and nature reserves.
While the Segeberger Kalkberghöhle is the primary natural cave, Schleswig-Holstein also features other interesting underground sites. These include the Idstedt Robber's Cave, a Neolithic megalithic tomb, and the Mumiengrotte (Mummy Grotto) in Christiansenpark, a man-made grotto housing an ancient sarcophagus.
Visitors frequently highlight the fantastic views from the Kalkberg, especially in good weather, offering panoramic sights of Bad Segeberg and Lake Segeberg. The guided tours through the unique gypsum cave and the educational experience at the Noctalis Bat Centre are also highly praised for being impressive and informative.
Yes, Bad Segeberg, being a popular tourist destination, offers various dining options and cafes. You'll find places to eat and drink in the town center, which is conveniently located near the Kalkberg and the cave entrance.


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