Hiking Highlight (Segment)
The tunnel was originally intended to drain the water of the Märjelensee into the valley in a regulated manner. Originally, the waterline was on the lake side at the mouth of the tunnel and the glacier had dammed the lake up to this point. In the spring when the snow melted, this damming began to leak and the Märjelensee erupting through the glacier caused great damage below the glacier. With the tunnel, part of the water should be discharged in time to limit the damage. Due to the glacier melt, no more water is accumulated today and the tunnel serves as a footpath.
September 10, 2017
It's like a small mine. You should wear waterproof shoes and a jacket! The path is flat, but in places there is water across the whole width. In the tunnel is a Madonna statue. Stalactites on the ceiling are also interesting. The tunnel is lit, but a flashlight doesn't hurt.
August 6, 2021
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