Best canyons around St. Johann offer diverse natural features within the Swabian Alb region. This area is characterized by its unique geological formations, including Jurassic limestone rocks and deep gorges carved by erosion. The landscape provides opportunities for exploring impressive rock faces, narrow paths, and historical sites. St. Johann serves as a gateway to these natural wonders, appealing to those interested in geology and outdoor exploration.
Last updated: June 27, 2026
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Pause for a moment and enjoy the view
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The ruin has an observation tower. Great view along the Ermstal
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Walter Röhm, author of the Bad Urach hiking book, explains how the hell holes came about so - actually they are cracks in the rocks of the Weißjura delta lying on top in this area of the Alb - so that the underlying marl layers of the Weißjura gamma are to be regarded as impermeable to water. As a result, water that has penetrated into the upper layers, hitting the marl, must come out and flow down the slope and cannot seep away. During this process, according to Röhm, the layers of marl soften and become slippery, so that they no longer offer proper support to the rocks above. This process continues until individual clods tear out and go to the valley. The dizzyingly narrow rocks lying down the valley – if not already hanging – are floes that are doomed to fall but have not yet gone down into the valley, and which have already become detached from the Alb body as a result of the process described above. It will be difficult to predict when they will follow other crash candidates that have preceded them.
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Simply amazing 🤩👍🤩 Best to marvel at yourself!
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Wild rock crevices and ravines on the edge of the Alb.
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An absolute highlight. Be sure to walk through it and use the two short steel ladders. The canyon is very impressive!
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Here you should already know where to put your feet ;) Two ladders and a rocky climb out of the hell hole... It can be very slippery there and as an unsafe occasional hiker you should think twice. At least not go alone. But when you do it, it's an unforgettable experience. The history of the earth is presented very intensively right here. We were very impressed down there ;)
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A little below the hiking trail, on the mountain slope, are the jagged limestone cliffs. The trenches through the rocks invite you to explore and are not only exciting for children.
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The canyons around St. Johann, located in the Swabian Alb region, are characterized by their unique geological formations, primarily Jurassic limestone rocks. These impressive formations, like those found at Höllenlöcher Rock Crevices, were exposed by millions of years of erosion. You'll be walking over what was once the seabed, as this area was covered by the Jurassic Sea around 200 to 150 million years ago.
Yes, for those seeking a challenge, the Wolfsschlucht Gorge offers a demanding trail. It features a narrow path that leads through the gorge, including a steel staircase at the entrance from the Hohenwittlingen parking lot, making for an adventurous hike.
The Trailfinger Gorge is an excellent choice for cyclists. It offers a scenic bike path with a pleasant and even incline, making it a romantic and enjoyable route, especially on hot days as much of it is shaded.
Near the canyons, you can explore the Hohenwittlingen Castle Ruins. This historical site, built on a rock spur, offers insights into past defenses and provides an observation tower with great views along the Ermstal valley.
Yes, Split Rock is a well-known natural monument popular for climbing. It features imposing rock faces and steep climbs, attracting climbers, especially on good weather weekends.
Visitors particularly appreciate the diverse natural features, from impressive rock faces and narrow paths to historical sites. The unique geological formations, such as the Jurassic limestone rocks, and the challenging yet rewarding trails like those in Wolfsschlucht Gorge, are frequently highlighted. The scenic beauty and opportunities for outdoor exploration are also highly valued.
Beyond exploring the gorges themselves, the St. Johann area offers a variety of outdoor activities. You can find numerous hiking trails, including options for waterfall hikes and more strenuous mountain hikes, catering to different difficulty levels.
Many of the natural attractions double as excellent viewpoints. For instance, the Hohenwittlingen Castle Ruins provide a great view along the Ermstal, and the Höllenlöcher Rock Crevices also offer scenic perspectives of the landscape.
The trails vary in difficulty. Some, like the path through Wolfsschlucht Gorge, are considered challenging due to narrow sections and steel staircases. Others, such as the bike path through Trailfinger Gorge, offer a more moderate and pleasant experience. Always check specific trail descriptions for details.
The region is rich in natural monuments. Besides the gorges themselves, you'll find impressive rock formations like Split Rock, known for its climbing opportunities, and the unique Höllenlöcher Rock Crevices, which showcase the area's Jurassic limestone geology.
When exploring, especially in areas like Split Rock or Wolfsschlucht Gorge, it's recommended to wear sturdy, ankle-high hiking boots due to steep climbs and uneven terrain. Always be mindful of other visitors, especially on shared paths like the one in Trailfinger Gorge.


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