Otjikoto Lake is a sinkhole lake, created by a collapsing karst cave near Tsumeb, Namibia. In June 1915 German troops dumped war materials in the lake...
by claudia stucki on Flickr.Panoramic view of Klöntalersee, a natural lake in the Canton of Glarus, Switzerland.
#svizzera, #schwammhöhe, #view, #suisse, #schweiz
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