Sediment plume (IMAGE) University of Copenhagen - Faculty of Science Caption As the lake filled, the water began to lift the glacier, carving a 25-kilometer-long tunnel beneath the ice, through which the water eventually burst into the world’s largest fjord, Scoresby Sound. Credit Aslak Grinsted Usage Restrictions W. credit License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.