Ushuaia's self-proclaimed status that it is the fin del mundo ("end of the world") prompts a natural question: what lies beyond the port? And the answer is: nature, at its rawest, wildest best.
The Drake Passage can be one of the lumpiest, least pleasant stretches of open water on the planet. It separates the world we know from Antarctica.
A clue lies in the title of Apsley Cherry-Garrard's book, The Worst Journey In The World, which chronicles Robert Falcon Scott's heroic failure to be first to reach the world's southernmost point.
It begins: "Polar exploration is at once the cleanest and most isolated way of having a bad time which has been devised."
The driest, coldest and windiest continent is unfit for human habitation. Settlements in Antarctica remain microscopic for a continent twice the size of Australia: a scattering of small research stations around the edges, with another - the Amundsen-Scott Station - at the Pole itself, 90 degrees south.