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Photo Essay
Under Antarctic Ice
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 ©2003 Norbert Wu/

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This photo was taken above the ice tower Couloir Cliffs -- granite rocks nearly 5km long and 30-60m high, named after their numerous chimneys and couloirs (mountainside gorges). As the exposed rocks soak up the sun's warmth, the snow melts. Water trickles down the cracks and runs under the sea ice. It freezes as it flows underwater, and the steep rock walls below the surface become coated with ice, forming magical frozen waterfalls or "icefalls."

--Norbert Wu