Stillensteinklamm, Narrow canyon in Grein and Sankt Nikola an der Donau, Austria.
Stillensteinklamm is a narrow canyon between Grein and Sankt Nikola an der Donau, where rock walls rise sharply on both sides. Water erosion over thousands of years has carved intricate formations through the stone that define the landscape.
The canyon formed during the last ice age when meltwater flowed through rock layers and gradually carved this passage. This geological process took tens of thousands of years to create the formation seen today.
The site draws local hikers and visitors who come to experience the narrow passages and rock walls. Walking through here offers a way to connect with the natural landscape that shapes life in this valley.
The paths are marked and lead from Grein and Sankt Nikola into the canyon. Parking areas are available at the entrances, and trails suit different fitness levels.
The flowing water in the canyon creates natural echoes that sound different depending on the season and water level. These acoustic effects come from the rock walls and create an unusual sensory experience.
Location: Grein
Location: Sankt Nikola an der Donau
GPS coordinates: 48.24080,14.88060
Latest update: December 12, 2025 09:04
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