Ushuaia has abundant accommodations, but it’s long been one of the most expensive destinations in what was, until recently, an expensive country. Demand is also high, though, in the summer months of January and February, when prices rise and reservations are advisable.

One heartening development is the proliferation of good but moderately priced backpacker hostels and the arrival of several bed-and-breakfasts—known by the semi-English acronym ByB—some of them excellent alternatives.