Fly over Ushuaia, Argentina’s “End of the World,” where snow-dusted peaks, the Beagle Channel, and colorful portside ...

So her trip to Ushuaia was part work, part play—and part awakening. Casewit, who has called Argentina home for the past seven years, found a certain clarity at the end of the world.

Ushuaia (typically pronounced oosh-why-yah), a windy outpost of about 85,000 residents in the Andes mountain range, proudly bills itself as “fin del mundo,” the end of the world.