Pack ice in Antarctica - Australian Antarctic Division
Pack Ice is formed when the sea has large ice-floes floating on it and it is the last stage of sea ice formation. As temperatures fall, the channels of water between the pack-ice close up as the ice-floes join together. Many explorers have had their ship trapped in pack ice in Antarctica, and Ernest Shackleton's Ship, Endurance was crushed by pack ice in 1915.
Ice, Ice & More Ice
