GREENLAND !
watch the map, [link to www.google.ca (secure)]

all the ice is above sea level , and part of Antarctica.

"The Greenland ice sheet is 10,000 feet thick in places and contains enough ice to raise sea levels 23 feet (7 meters). In the 20th century, Greenland has lost around 9,000 billion tons of ice in total, accounting for 25 millimeters of sea-level rise. (It takes about 360 billion tons of ice to produce one millimeter of global sea-level rise.)"

[link to www.nationalgeographic.com (secure)]