yellow warning sign for collapse of norwegian glacier with glacier in background

austfonna avalanche background beautiful blue briksdalsbreen change climate cold danger excursion falling folgefonna glacier hardangerjøkulen hiking ice jostedal jostedalsbreen landscape landslide lights mountain natural nature nigardsbreen northern norway olav olden outdoor relax river rock scenic sign sky snow sport svartisen symbol texture thaw tourism travel vestee vestfonna view warning water white yellow