Caves near Märstetten are part of a region characterized by the picturesque municipality of Märstetten, situated in the fertile Thur Valley. This area is known for its timber-framed houses and its location at the foot of the Ottenberg mountain. While Märstetten offers various natural attractions and recreational activities, the geological formations primarily consist of the Thur Valley's groundwater occurrences and vineyard slopes. The region provides a setting for outdoor exploration, including hiking trails on the Ottenberg.
Last updated: July 11, 2026
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Did you find the entrance? I climbed around there for 20 minutes, but only found areas that were filled in
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According to the map, there is supposed to be a cave here, there are also several holes in the slope that indicate a system. However, these are either small or filled in, climbing around is only recommended to a limited extent.
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At the back of the cave is a spring. 3 rooms lead off from the main corridor.
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Artificially created cave from the Middle Ages or even earlier! THE SOURCE IS DRINKING WATER! According to the board! Also easy to walk for taller people, about 10m deep with 4 chambers!
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Creepy Place, don't forget your flashlight, a true lost place
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Beautiful private castle Liebefeld near Steckborn
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Info page about the Bruderloch: https://www.tagblatt.ch/ostschweiz/wil/sagenumwobenes-bruderloch-ld.584771
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The Märstetten area offers a mix of natural and artificially created cave formations. You can find historical sites like the Bruderloch Cave, which features impressive, artificially created chambers, and natural formations such as the Suspected Cave at Lake Constance, though some natural systems may be small or partially filled.
Yes, the Bruderloch Cave is an artificially created historical site with a spring and three rooms leading off its main corridor. Additionally, near Steckborn, you can find Caves, bunker, and lost place near Steckborn, which includes caves likely used for military purposes and an open bunker, offering a glimpse into the region's past.
For those seeking a challenge, the Cave Entrance in the Forest near Tägerwilen involves a steep driveway to reach its entrance. The Suspected Cave at Lake Constance is also noted as challenging, with several holes in the slope indicating a system, though climbing is recommended only to a limited extent due to their size or being filled in.
The region around Märstetten is excellent for various outdoor activities. You can find numerous hiking trails, including routes on the Ottenberg, or explore the area through gravel biking and mountain biking trails that traverse the picturesque Thur Valley and surrounding forests.
The Bruderloch Cave, while artificially created, features a natural spring at its back. The Suspected Cave at Lake Constance is a natural formation with multiple holes in the slope, though they are generally small or filled in.
The Bruderloch Cave is an impressive, artificially created cave system. It features a spring at the back and three distinct rooms leading off from the main corridor. Visitors often find the approach to the cave itself to be a very cool experience.
Märstetten is primarily known for its picturesque landscape, including the Thur Valley and Ottenberg mountain. While there are some natural cave formations, the geological makeup of the region, characterized by groundwater occurrences and vineyard slopes, does not typically support extensive, large-scale natural cave systems like those found in other parts of Switzerland.
This site offers an exciting and somewhat spooky experience. It features an open bunker and several caves, believed to have been used for military purposes, alongside a 'lost place' that adds to its mysterious atmosphere. It's recommended to bring a flashlight for exploration.
The Bruderloch Cave is also categorized as a viewpoint, suggesting scenic surroundings. The broader Märstetten area, situated at the foot of the Ottenberg mountain and in the Thur Valley, offers many picturesque landscapes and hiking opportunities with beautiful views.
The Cave Entrance in the Forest is located within a forest and is notable for its steep driveway if approaching from Tägerwilen. The entrance itself can be found on the right side within the forest, offering a more secluded exploration experience.
Exploring the caves around Märstetten often involves hiking or biking to reach them. Many are situated within natural landscapes or forests, requiring some outdoor activity to access. Always check the difficulty level of the specific cave and its approach before you go.
When visiting the Suspected Cave at Lake Constance, be aware that while there are several holes in the slope indicating a system, these are often small or filled in. Climbing around is generally recommended only to a limited extent due to these conditions.


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