Although only about 2% of Antarctica is exposed as ice-free land, there are hundreds of lakes found there that vary from freshwater to saline.  There are even hundreds more that are below the ice sheets that have been hidden and isolated there for millions of years.  In this episode, I review the different types of lakes found in Antarctica and the life within them. These lakes include the most saline lake on earth, Don Juan Pond which is 18x saltier than the ocean, and the most isolated lake in the world, Lake Vostok, a large freshwater lake that is 4 km below the ice sheet on the polar plateau.