Best caves around Bezirk Mödling, located in Lower Austria, offers a diverse landscape characterized by the Vienna Woods and various natural formations. The region is known for its geological features, including several intriguing caves and grottoes. These natural sites provide opportunities for exploration and are often integrated into hiking trails. The area combines natural beauty with historical significance, particularly evident in its most prominent cave.
Last updated: April 25, 2026
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Höllensteinlucke: Best viewed from the hiking trail. Luckily there are 4 routes
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First, you walk through a low tunnel far into the mountain, where you are finally given a detailed explanation of the working conditions in former times and what happened in the tunnel during the Second World War, including the construction of the first fighter jet. After the mine tour, you continue a bit further down to the largest underground lake in Europe, where you take a short boat trip. The lake is very clear, the air is great, and the lighting is also very beautiful to look at. We went to the Seegrotte purely by chance and were lucky enough to get a private tour, as apparently no one else wanted to visit the grotto at lunchtime. Our guide was very nice, explained everything in great detail, and in the end, we were even allowed to do two laps on the lake.
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There was also a collapse long before 1980. Since then, the cave has been considered prone to collapse. Many rock debris lie in the artificially created entrance tunnel.
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The Grotto of Mary is located on a forest clearing below ground level, the entrance is secured with posts or a small concrete wall, the interior of the grotto is largely natural. At the entrance there is a small table and a seat, a small bell can be rung by pulling a cord. On the right side of the grotto is a painted statue of the Virgin Mary, modeled after Gothic madonnas, protected above the entrance by a wooden gable roof, a carved, unframed figure of the Virgin Mary in the style of the mantle madonnas.
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The Parapulieberg Cave is a small rock cave in the Vienna Woods, adding a touch of adventure to your hike. Children and adults alike love the short detour into the semi-darkness before returning to the forest paths. It's ideal as a playful break or a little highlight on hiking and running routes around the Parapluiberg.
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Höllensteinlucke – the breather for altitude heroes 😅 Are you on your way to the Höllensteinhaus, panting like a broken vacuum cleaner and wondering if you're lost? Don't worry – you've arrived at the Höllensteinlucke! 🎉 This legendary "lucke" isn't a magical portal, but simply a small cut in the terrain – but for tired hiking legs, it feels like a gift from the Vienna Woods. 🌲✨ Here you can take a short breather, question your existence, and mentally prepare for the final climb. Because from here on, things get tough again – but hey, you're not here for fun. Or are you? 😄
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Leiwander Trail is slippery when wet. Sometimes blocked by trees.
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The Grotto of the Virgin Mary is located in a forest clearing below ground level, the entrance is fenced off or secured with a small concrete wall, the interior of the grotto is largely natural. At the entrance there is a small table and a place to sit, a small bell can be rung using a cord. On the right side of the grotto there is a painted statue of the Virgin Mary based on the model of Gothic Madonnas, above the entrance protected by a wooden gable roof, a carved, unpainted figure of the Virgin Mary in the style of the protective cloak Madonnas. Various pictures have been placed inside the grotto.
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The Seegrotte Hinterbrühl is a disused gypsum mine that houses Europe's largest underground lake, covering 6,200 square meters. Visitors can take unique boat rides across the lake, 60 meters below the surface. It also has historical significance, having been used as an underground factory during World War II.
Yes, Bezirk Mödling offers several other intriguing caves. The Dreidärrischen Cave is the largest cave in the Wienerwald, serving as a sanctuary for bats. The Höllensteinlucke Cave is a known resting place for hikers near Höllensteinberg. The Einödhöhle, near Pfaffstätten, is a significant Jungtertian surf cave with a history as a WWII shelter, featuring halls like the "throne room" and "ruins hall." Smaller grottoes like the Frauenstein Cave and Parapulieberghöhle are also popular stops on hiking trails.
The region's caves showcase diverse geological formations. The Seegrotte Hinterbrühl is a former gypsum mine, featuring vast underground spaces created by mining. The Einödhöhle is notable as a preserved Jungtertian surf cave, indicating its formation by ancient sea activity. Other caves and grottoes, like the Matterhörndl, are limestone rock formations, often integrated into the natural landscape of the Vienna Woods.
The Seegrotte Hinterbrühl is considered family-friendly and is a show mine designed for visitors. While specific wheelchair accessibility details for the entire tour (including boat rides) should be confirmed directly with the attraction, it is generally set up for public access. Other caves in the region, often found along hiking trails, may require more physical effort.
The Seegrotte Hinterbrühl maintains a consistent temperature of 9°C (48°F) year-round, making it a suitable visit in any season, including winter. For caves that are part of hiking trails, like the Frauenstein Cave or Parapulieberghöhle, spring to autumn generally offers the most pleasant weather for outdoor activities.
The Seegrotte Hinterbrühl is a popular family destination, offering boat rides on Europe's largest underground lake. Smaller rock caves like the Parapulieberghöhle and the Matterhörndl can also provide a playful break and a sense of adventure for children during hiking routes.
The Einödhöhle is located on the southern slope of the Pfaffstättner Kogel. It was developed for tourism in 1925 and served as a shelter during WWII. Today, the cave is unlocked and can be visited, leading through halls with adventurous shapes. However, it is legally designated as a "specially protected cave" under the Lower Austrian Cave Protection Act, meaning visits are technically prohibited except for scientific purposes, despite being advertised as a sight by the community of Pfaffstätten. It's advisable to check local regulations before planning a visit.
Many caves in Bezirk Mödling are integrated into hiking trails, offering opportunities for outdoor activities. You can explore various routes in the region, such as those found in the Hiking around Bezirk Mödling guide, which includes trails like the Höllenstein circuit or the Sparbach Nature Park Round. For more challenging adventures, consider the Mountain Hikes around Bezirk Mödling guide, which features routes like the Mödlinger Via Ferrata. Cycling options are also available, as detailed in the Cycling around Bezirk Mödling guide.
Yes, several caves in the region have significant historical ties. The Seegrotte Hinterbrühl, originally a gypsum mine from 1848, gained a somber history during World War II when it was used as an underground factory for Heinkel jet fighters. The Einödhöhle also served as a shelter for over 380 inhabitants during WWII. These sites offer a glimpse into both the industrial and wartime past of the area.
For the Seegrotte Hinterbrühl, where the temperature is consistently 9°C (48°F), it is advisable to wear warm clothing, even in summer. For other caves that are part of hiking routes, comfortable hiking shoes and weather-appropriate clothing are recommended, as conditions outside can vary. Some caves may have uneven or damp surfaces, so sturdy footwear is always a good idea.
Yes, the region offers amenities for visitors. For instance, the Höldrichsmühle – Franz Schubert Memorial is a historical site that also features a cafe and restaurant, making it a convenient stop. Additionally, the towns and villages surrounding the caves, such as Mödling, provide various options for cafes, restaurants, and accommodation.
Visitors particularly appreciate the unique experience of the Seegrotte Hinterbrühl, especially the boat rides on Europe's largest underground lake. The mystical atmosphere of places like the Matterhörndl and the adventure of exploring smaller rock caves like the Parapulieberghöhle during hikes are also highly valued. The combination of natural beauty, historical significance, and opportunities for outdoor activities makes the caves a popular attraction.


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