We just learned about the largest island in Antarctica, Alexander Island.
The second largest island is Berkner Island.
This island is about 200 miles by 100 miles, and 17,000 square miles, bigger than the US state of Maryland.
Even though it is an island, the rock part of the island is below the water, and on top of the rock is a big bunch of ice that makes up the island.
If all of the ice melted, the island would be under water.
During the cold parts of the year the island is surrounded by ice, so it doesn't always look like an island.
(from: wikipedia - berkner island)
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