Iceberg is a large amount of fresh water ice that breaks from the end of the glacier or polar ice cap to the sea and falls into the sea, which is usually found around Greenland in Antarctica. Most icebergs are formed in spring and summer, when warmer weather accelerates the division of glaciers or ice sheet edges. Each year, there are about 10000 icebergs produced by glaciers in western Greenland alone.

Iceberg ice is over 5000 years old, which is clean ice without industrial pollution. Icebergs can last for 10 years in high latitude areas, but if they drift to the broad sea, they will not be found in one or two years. The main motive force of iceberg movement is wind, and the second is current.

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