Best caves around Bad Segeberg are primarily known for their unique geological formations and significant ecological role. The town is centered around the Kalkberg, a gypsum rock that hosts the Segeberger Kalkberghöhle, a notable gypsum cave. This area is a crucial wintering ground for bats and home to a unique cave beetle. Bad Segeberg also features cultural attractions like the Karl May Festival, set within the Kalkberg's open-air arena.
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 primary cave in the area, the Segeberger Kalkberghöhle, is unique as Germany's northernmost and second-longest gypsum cave. It was formed over 20,000 years ago and is a significant natural monument in Schleswig-Holstein. It's also one of Northern Europe's most important wintering quarters for bats.
Visitors can explore approximately 600 meters of the cave on informative guided tours, which typically last 30-35 minutes. These tours provide insights into the cave's formation, discovery, and its unique ecosystem, including its resident wildlife and geological features. The cave maintains a consistent temperature of about 10°C (50°F) and 100% humidity year-round.
The cave is open to visitors from late March to October. It is closed during the winter months (October to late March) to protect the bats during their hibernation period. Visiting in April might offer a chance to see some bats still flying around before they leave their winter quarters.
Yes, the Segeberger Kalkberghöhle and the adjacent Noctalis Bat Centre Bad Segeberg are considered family-friendly. The Noctalis offers an interactive exhibition where you can learn about bats and even observe living bats up close. However, due to natural terrain, the cave itself is not suitable for strollers.
It is recommended to wear warm clothing, even in summer, due to the cave's consistent temperature of about 10°C (50°F). Sturdy, non-slip shoes are also advisable as the cave paths can be uneven and moist.
No, dogs are not allowed inside the Segeberger Kalkberghöhle to protect the sensitive cave ecosystem and its bat inhabitants.
Due to its natural terrain with uneven and moist paths, the Segeberger Kalkberghöhle is not suitable for wheelchairs or strollers.
Parking is available near the Kalkberg, Bad Segeberg and the Noctalis Bat Centre. Specific parking information can usually be found on local tourism websites or on-site signage.
Adjacent to the cave is the Noctalis Bat Centre Bad Segeberg, an interactive exhibition about bats. The cave is located within the Kalkberg, which offers panoramic views of Bad Segeberg and the Great Segeberg Lake from its viewing platform. The area is also famous for the Karl May Festival, held in an open-air arena carved into the Kalkberg.
The area around Bad Segeberg offers various outdoor activities. You can find numerous hiking trails, including easy and moderate options around the Great Segeberg Lake and the Ihlwald Nature Reserve. For cycling enthusiasts, there are traffic-free bike rides available. You can explore routes like the Großer Segeberger See Loop or the Great Segeberg Lake – Kalkberg, Bad Segeberg loop. For more details, check out the Hiking around Bad Segeberg and Traffic-free bike rides around Bad Segeberg guides.
The Segeberger Kalkberghöhle is a crucial habitat for bats, serving as one of Northern Europe's most important wintering quarters for over 30,000 bats of seven different species. It is also home to the Segeberger Höhlenkäfer (Segeberg Cave Beetle), a unique Ice Age relic found only in this cave worldwide, which has adapted to life in the dark and feeds on bat droppings.
Yes, the area around the Kalkberg and the Noctalis Bat Centre in Bad Segeberg offers amenities such as cafes and restaurants. The town of Bad Segeberg itself provides various options for refreshments and dining.


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