Marienschlucht, Natural valley near Lake Überlingen, Germany
Marienschlucht is a valley beside Lake Überlingen with steep rocky walls that drop down to the water. In some places the paths are only about one meter wide, and the landscape is shaped by rock formations from different geological periods.
Remains of Kargegg Castle still stand in the valley, destroyed by farmers in 1525 and left as ruins ever since. The damaged walls tell the story of conflicts from that period.
The name comes from the Virgin Mary, who holds special meaning in local tradition. Visitors can sense the connection between the natural landscape and this religious heritage as they explore the narrow passages.
Access to the valley has been restricted since 2015 for safety reasons, as rockfalls pose an ongoing risk. Visitors can reach only the path along the lake shore and the boat landing, while passage into the narrower sections is not allowed.
The valley can also be reached by water, and some visitors explore it from the lake using a boat or canoe to view the steep walls from below. This perspective reveals the full height and drama of the cliffs in a way that is impossible from land.
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