Describe: Explore Antarctica's icy underwater realmWith hurricane-force winds and cold that can kill in minutes, Antarctica's surface hosts little year-round life. But beneath its frozen seas lies one of Earth's most stable and vibrant ecosystems -- and one of its most enchanting realms. Norbert Wu's photography has been featured in National Geographic, International Wildlife and Time. Explore the underwater realm of the icy continent in this collection of breathtaking photographs - some of which were featured in the February 1999 issue of National Geographic. Web download blue world gif.