Best caves around Lieg are primarily historical slate mining tunnels, offering a unique blend of industrial heritage and natural preservation. This region features numerous man-made underground structures that once served as mines. Many of these former mining sites now provide crucial habitats for bat colonies. Visitors can explore these historical tunnels and learn about the area's past mining activities.
Last updated: October 28, 2026
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A beautiful spot... nature 🌳🍄🟫
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large rocky outcrop as a shelter and as a wintering place for bats
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A slate mine with a nice rest area and information board.
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This evidence of the former slate mining in the Baybachtal can be found in several places.
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The mine path begins with Jupp, the miner carved out of wood, who is a symbol of the miners from Morshausen who mined ore in the lower Theresia mine from 1859 to 1886. The ores were brought to St. Goarshausen-Fellen for smelting. From the Theresia ore mine, the mouth hole of the lowest tunnel at Baybach level near the colliery house, which was built in 1860 for 12 miners and miners, has been preserved and one at the spoil heap level. The various tunnels extended from 250 meters to 20 meters into the mountain and were 10 to 15 meters wide.
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Even if it's tempting: Don't go in (even if the cave is open) and disturb the bats, because then they might not survive hibernation!
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The caves around Lieg are primarily historical slate mining tunnels. These are man-made underground structures that once served as mines, offering a unique blend of industrial heritage and natural preservation. Many now provide crucial habitats for bat colonies.
Yes, Klöckners Kaul slate mine tunnel and rest area is a family-friendly historical site. It features a very nicely prepared rest area at its entrance, making it suitable for visitors of all ages.
Most of the historical slate mining tunnels around Lieg, such as the Baybachtal Bat Cave (Slate Tunnel) and the Slate Mining Tunnels on Strimmiger Berg, have barred entrances or are closed due to the danger of collapse. These measures are primarily in place to protect bat colonies that use them as wintering places and to ensure visitor safety.
Visiting sites like the Katzenloch Slate Mine or the Slate Mining Tunnels on Strimmiger Berg offers a glimpse into the region's past industrial practices. You can learn about the laborious and dangerous work of slate mining, the tools used, and how these tunnels served various purposes, including as air-raid shelters during wartime.
The historical slate mining tunnels are vital habitats for bat colonies, especially during winter. Sites like the Baybachtal Bat Cave (Slate Tunnel) and the Theresia Mine Tunnel are protected as sheltered sleeping and wintering places for bats.
Yes, the Lieg region offers numerous hiking trails. You can find various routes, including easy and moderate options, that pass by or near some of these historical sites. For more details, explore the Hiking around Lieg guide.
Beyond hiking, the area around Lieg is excellent for gravel biking and mountain hikes. You can find a range of routes from moderate to difficult. Check out the Gravel biking around Lieg guide and the Mountain Hikes around Lieg guide for more information.
Visitors frequently appreciate the unique blend of industrial heritage and natural preservation. The historical significance of the slate mining tunnels, their transformation into crucial bat habitats, and the well-maintained rest areas like the one at Klöckners Kaul are often highlighted.
Given that many tunnels are closed due to the danger of collapse or for bat protection, it's crucial to respect all barriers and signage. Stick to marked paths and designated visitor areas. If exploring nearby trails, be aware of your surroundings, especially near old mining spoil heaps.
The historical slate mining tunnels are accessible from the outside year-round. However, if you plan to combine your visit with hiking or biking, spring and autumn offer pleasant weather conditions. During winter, some tunnels serve as bat hibernation sites, so it's important to avoid disturbing them.
Yes, for example, Klöckners Kaul slate mine tunnel and rest area offers a very nicely prepared rest area at its entrance. Other sites may have rustic picnic benches along nearby trails, such as near the Katzenloch Slate Mine.
Since most exploration is external and involves walking or hiking around the sites, comfortable walking shoes or hiking boots are recommended. Dress in layers, as temperatures can vary, especially if you're exploring trails in wooded areas.


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