Ushuaia is by far the most popular gateway city for tourism to Antarctica, accounting for 90% of all tourists to the continent. Nearly all of the passengers departing Ushuaia for Antarctica travel by cruise ship.
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Transport in Antarctica takes place by air, using fixed-wing aircraft and helicopters. Runways and helicopter pads have to be kept snow-free to ensure safe take off and landing conditions. Antarctica has 20 airports, but there are no developed public-access airports or landing facilities.