![Ice cave, proglacial lake and insulating cover Ice cave, proglacial lake and insulating cover](icons-2021/rhonegletscher_2007_2016_2021.jpg) Repeat photos of the growing proglacial lake in 2007 (top), 2016 and 2021 (bottom). | ![Ice cave, proglacial lake and insulating cover Ice cave, proglacial lake and insulating cover](icons-2021/rhonegletscher_eishoehle.jpg) Parts of the ice tunnel are no longer ice-covered, but are still under the insulating blanket (July 27th, 2021). | ![Ice cave, proglacial lake and insulating cover Ice cave, proglacial lake and insulating cover](icons-2021/rhonegletscher_luftblasen.jpg) Detail in translucent glacier ice: centuries old ice with air bubble inclusions. | ![Ice cave, proglacial lake and insulating cover Ice cave, proglacial lake and insulating cover](icons-2021/rhonegletscher_vlies_gletschersee.jpg) Some of the insulating material now ends up in the proglacial lake and gets covered by glaciofluvial sediment (July 27th, 2021). |
![Ice cave, proglacial lake and insulating cover Ice cave, proglacial lake and insulating cover](icons-2021/rhonegletscher_luftbild_2.jpg) Aerial photo looking upglacier; proglacial lake and area of ice cave below (July 27th, 2021). | ![Ice cave, proglacial lake and insulating cover Ice cave, proglacial lake and insulating cover](icons-2021/rhonegletscher_luftbild_4.jpg) Vertical view of the area of the ice cave, with insulating cover; north is to the left (July 27th, 2021). | ![Ice cave, proglacial lake and insulating cover Ice cave, proglacial lake and insulating cover](icons-2021/rhonegletscher_luftbild_3.jpg) Snout of Rhonegletscher with covered section and the proglacial lake, which has grown further (1, July 27th, 2021). | ![Ice cave, proglacial lake and insulating cover Ice cave, proglacial lake and insulating cover](icons-2021/rhonegletscher_luftbild_1.jpg) Snout of Rhonegletscher with covered section and the proglacial lake, which has grown further (2, July 27th, 2021). |