Ushuaia The world's southernmost city is located on the Beagle Channel, between the Martial Range and the end of the world. It is a key access point to skiing at Cerro Castor and Glaciar Martial, wildlife adventures with penguins and orcas in the Beagle Channel, and Tierra del Fuego National Park. Of course, it’s also the port of call nearest Antarctica, and a unique destination for kayaking, sailing or having a drink in a warm hotel bar.