The icebergs come in all shapes and sizes moved by the wind and sea. Most of them originate from the large portions of ice that break off from the glaciers on the west coast of Greenland, 1000's of km to the north. During early spring and summer many of them float by driven by the Labrador current on their way to what has become known as "Iceberg Alley" on the Grand Banks, south of Newfoundland. There, where the cold Labrador Current meets with the warm water of the Gulf Stream flowing up from the Eastern Seaboard they eventually break apart and founder.

A key note to remember is that a iceberg is 7/8's larger below the surface than it looks above. (For an example, take an icecube, place it in a glass of water. Not much floats above, does it! So if a iceberg is standing 100ft above the waters surface, 900ft or more could be below.)