Best caves around Pennewitz are found within the Ilm-Kreis district of Thuringia, Germany, a region characterized by its natural landscapes and historical significance. Pennewitz, situated near Ilmenau, provides access to a variety of underground attractions. The surrounding area features historical mining sites, natural grottoes, and unique geological formations within the Thuringian Forest. This makes it a notable destination for exploring the region's subterranean features.
Last updated: June 29, 2026
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The Krone mine should definitely not be accessed on morning or evening tours. Fitness and good equipment are essential.
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Some technical tools are still in the mountain. I didn't see some of them last time. It's more than twice as large as the last time I explored.
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Various pieces of technology are still underground. Rubber boots are probably mandatory for the lower shaft.
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Looked interesting but looking inside isn't my thing.
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We arrive at a buried entrance to the Leuchtmoosgrotte, named after a very rare moss, where red iron stone was once mined.
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Small inconspicuous cave with seating. If you are nearby you can have a look. Unfortunately, the Bärenkeller, which is located next to it, is not always open.
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Very nice view of the Schwarzatal. The trail there and further into the Schwarzatal is only for experienced bikers.
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The region around Pennewitz offers a diverse range of underground experiences. You can find historical mining sites, natural grottoes, and unique geological formations. These include ancient gold-digging sites like the Güldene Kirche, former iron stone mines such as the Leuchtmoosgrotte (Tunnel Entrance), and natural karst caves like the Prehistoric Cave Below Bärenkeller. Further afield in Thuringia, you can also visit show mines and natural crystal grottoes.
Yes, the area has a rich mining history. The Leuchtmoosgrotte (Tunnel Entrance) is a former mining entrance where red iron stone was extracted until 1821. The Güldene Kirche is associated with an ancient tunnel dug for gold. For a deeper dive into mining history, the Schaubergwerk "Volle Rose" in Langewiesen, though not a natural cave, offers insights into historical mining operations with a small railway and exhibits on fluorspar mining.
The Leuchtmoosgrotte (Tunnel Entrance) is known for a rare, blue-shining moss that thrives in low light conditions. While not directly in Pennewitz, the Marienglashöhle Friedrichroda in the wider Thuringian Forest boasts a significant natural crystal grotto with large, transparent gypsum crystals. The Saalfeld Fairy Grottoes, originally slate mines, are famous for their vibrant, colorful mineral formations.
Many of the show mines and accessible caves in the broader Thuringia region offer family-friendly experiences. The Schaubergwerk "Volle Rose" in Langewiesen is generally suitable for all ages, though children under three are not permitted inside the mine. The Saalfeld Fairy Grottoes are also a popular family destination due to their colorful formations and adventure park. Always check specific age or health restrictions before visiting.
Caves generally maintain a consistent temperature year-round, making them a good destination in any season. However, access to some sites might be easier during spring, summer, and autumn when outdoor conditions are more favorable for hiking to cave entrances. Winter visits are possible, but check for specific opening hours and accessibility, especially for natural, less developed caves.
Even in summer, cave temperatures are cool, so wear warm layers. Sturdy, closed-toe shoes with good grip are essential, as surfaces can be uneven and damp. For more adventurous or undeveloped sites like the Overhead Loader in Naturpark Thüringer Wald or Bergwerk Krone, rubber boots and appropriate safety equipment (like helmets and headlamps) are highly recommended or even mandatory.
The region around Pennewitz offers numerous outdoor activities. You can find various road cycling routes, running trails, and gravel biking opportunities. Many cave entrances are located along hiking paths, allowing you to combine cave exploration with scenic walks through the Thuringian Forest.
Yes, the Güldene Kirche is steeped in legend, with tales of a boy who got lost in its tunnels and found gold and precious stones. The Goethe Cave at Hermannstein, a bit further out, was a favorite spot of Johann Wolfgang von Goethe, who assigned verses to this 'chosen rock'.
For those seeking a more challenging experience, the Overhead Loader in Naturpark Thüringer Wald and Bergwerk Krone are noted as challenging and require good fitness and equipment. The Böhlersloch Cave, a legendary karst cave near Arnstadt, involves crawling through a narrow entrance tunnel, adding to its adventurous appeal.
Visitors appreciate the unique blend of history and natural formations. The Güldene Kirche is valued for its legend and historical context. The Leuchtmoosgrotte (Tunnel Entrance) is noted for its rare moss and mining history. The Prehistoric Cave Below Bärenkeller offers a quiet spot for contemplation. The komoot community has contributed 46 photos and 53 upvotes, highlighting the appeal of these unique underground destinations.
Yes, the Dienstedt Karst Cave (Dienstedter Karsthöhle) is a natural karst cave formed millions of years ago by the erosion of the Ur-Ilm river. It is 350 meters long and was discovered in 1953. The Prehistoric Cave Below Bärenkeller is also a natural monument and cave, offering a glimpse into the region's geological past.
Many caves in the region showcase interesting geological formations. The Barbarossa Cave, for instance, is one of only two show caves worldwide made of anhydrite rock, known for its unique multi-layered play of colors. The Marienglashöhle features impressive gypsum crystals. The Saalfeld Fairy Grottoes display vibrant mineral deposits that have transformed former slate mines into colorful underground landscapes.


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