Best caves around Billigheim present a varied landscape of underground features, extending from natural grottoes to significant historical tunnels. The region, particularly the nearby Neckar-Odenwald-Kreis, is known for both impressive natural dripstone caves and unique man-made underground facilities. These sites provide insights into geological processes and historical events. Visitors can explore a range of subterranean environments within the area.
Last updated: June 26, 2026
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The Bundeswehr's underground facility in Neckarzimmern is a huge, complex warehouse with approximately 170,000 square meters of space and over 40 kilometers of roads and railways – originally a gypsum mine dating back to the 18th century. Today, over 190,000 items are stored there, but what exactly is in the crates remains secret.
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A long staircase of irregular sandstone steps leads to this beautiful spot. At the top, you can sit in a small covered arbor, enjoy the view, and listen to the babbling brook. Many thanks to everyone who cares for and maintains this place.
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The "Brasse" tunnel entrance is part of the historic "Goldfisch" underground relocation in Obrigheim, which served as an underground aircraft engine factory during World War II. The "Brasse" tunnel was a planned expansion, but only partially realized. These tunnels were built by concentration camp prisoners and forced laborers under extreme conditions.
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The natural staircase to the Lourdes Grotto in Höchstberg is a picturesque yet challenging path that leads pilgrims and hikers to the grotto. This staircase consists of 256 slippery and varied natural steps that lead through the forest down into the Tiefenbach valley. The path is particularly challenging in wet weather as the steps can be slippery.
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This grotto is a replica of the famous Grotto of Lourdes in France and offers a quiet place for prayer and reflection. The grotto is a place of peace and quiet, surrounded by nature and offers a wonderful way to escape from everyday life and enjoy a moment of silence.
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Coming from Höchstberg, a small sign on the mountain barn shows the way from above to the grotto. From below the Untergriesheimer Weir car park, steep stairs go up.
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In the hot summer, feeling the cool breeze in front of it - indescribable
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The region around Billigheim offers a diverse range of underground experiences. You can visit impressive natural dripstone caves like the Eberstadter Tropfsteinhöhle, historical sites such as the Brasse Tunnel Entrance, and unique man-made structures like the Bundeswehr Underground Storage Facility Neckarzimmern. There are also spiritual grottoes like the Lourdes Grotto, Höchstberg, and smaller natural caves such as the Notburgahöhle.
The Eberstadter Tropfsteinhöhle, located in Eberstadt, is renowned for its breathtaking beauty and rich variety of dripstone formations. It features numerous stalactites and stalagmites, including imaginatively named formations like the 'White Woman of Eberstadt' and the 'Wedding Cake'.
Yes, the Brasse Tunnel Entrance is a significant historical site. It's part of the "Goldfisch" underground relocation, which was an aircraft engine factory during World War II. Another historical site is the Bundeswehr Underground Storage Facility Neckarzimmern, originally an 18th-century gypsum mine that played a role in both world wars before becoming a military storage facility.
The Eberstadter Tropfsteinhöhle is particularly family-friendly and accessible. It features well-developed paths with no steps, making it wheelchair-friendly. Visits are exclusively by guided tour, providing an informative experience for all ages.
For the Eberstadter Tropfsteinhöhle, guided tours are available, and the cave maintains a constant temperature of 11 degrees Celsius year-round, making it a good visit regardless of external weather. For the Mariengrotte in Billigheim, it's recommended to visit during daylight hours to safely navigate the forest path and appreciate the surroundings.
Yes, the Lourdes Grotto, Höchstberg, is a replica of the famous Grotto of Lourdes in France, offering a quiet place for prayer and reflection. The Mariengrotte in Billigheim is also a serene grotto, continuously accessible for contemplation.
Access to the Notburgahöhle is adventurous and challenging. It involves climbing a washed-out "stone ladder" and navigating a narrow path along a steep wall. The cave is directly on the Neckar and may be inaccessible during high water levels. It's best suited for experienced hikers.
Yes, the region offers various hiking opportunities. For example, the Lourdes Grotto, Höchstberg, is reached via a natural staircase that is part of a picturesque yet challenging path. You can find more hiking options in the Easy hikes around Billigheim guide, which includes routes like 'The Ten Lakes loop'.
Yes, there are several cycling routes. For gravel biking, you can explore options like the 'Lake Roberner – Old Town Mosbach loop' found in the Gravel biking around Billigheim guide. Road cyclists might enjoy routes such as the 'Auerbacher Lake – Old malthouse Mosbach loop' from the Road Cycling Routes around Billigheim guide.
Visitors note that the natural staircase leading to the Lourdes Grotto, Höchstberg, consists of 256 slippery and varied natural steps, which can be particularly challenging in wet weather. It's described as a place of peace and quiet, offering a wonderful escape into nature for reflection.
The Bundeswehr Underground Storage Facility Neckarzimmern is a massive, complex underground warehouse spanning approximately 170,000 square meters with over 40 kilometers of roads and paths. Originally an 18th-century gypsum mine, it now stores over 190,000 different Bundeswehr articles, though the exact contents remain secret.
Yes, visits to the Eberstadter Tropfsteinhöhle are exclusively by guided tour. These tours provide insights into the cave's geology and formation, and while primarily in German, audio versions in English might be available.


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