Deep Lake (image) University of New South Wales Share Print E-Mail Caption Deep Lake in the Vestfold Hills region of Antarctica. The 36-metre deep lake is so salty it remains in liquid form down to a temperature of minus 20 degrees. Credit UNSW Sydney Usage Restrictions With appropriate credit and caption Share Print E-Mail 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.