Ushuaia Is the capital of Tierra del Fuego, Antártida e Islas delatlántico Sur Province, Argentina. With a population of 82,615and a location below the 54th parallel south latitude, Ushuaia claims the title of world’s southernmost city.Ushuaia is located in a wide bay on the southern coast of islagrande de Tierra del Fuego, bounded on the north by the Martialmountain range and on the south by the Beagle Channel. Besidesbeing an administrative center, it is a light industrial port andtourist hub. Ushuaia is located roughly 1,100 kilometres (680 mi)from the Antarctic Peninsula and is one of five internationallyrecognized Antarctic gateway cities.