Kite skiing across Antarctica to break 3 world records, in stunning photos

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sastrugi

credit: Sebastian Copeland

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But it wasn't all smooth sailing: Parts of the trip were made even more difficult by rough, windblown snow drifts, called sastrugi.

These icy bumps made kite skiing physically tough and also more dangerous, writes Copeland, since the sledges were liable to stop abruptly when "hitting sastrugi from the wrong angle at speed generates enough force to tip it, or flip it."

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