102 Beagle Channel - Ushuaia Penguins and whale watching The City at the End of the World: the southernmost city of all. Located on the rocky shores of the icy Beagle Channel, near Tierra del Fuego National Park, Ushuaia is not only the starting point for trips to Antarctica but a destination in its own right. The city is breathtakingly scenic and popular for winter and outdoor sports, such as skiing, trekking and exploring the massive Martial Glacier. Founded 150 years ago by Welsh immigrants, Puerto Madryn is a small and charming city, home base for those wishing to explore the natural splendour of the Valdes Peninsula. One of Argentinas World Heritage Sites, the Valdes Peninsula is extremely rich in wildlife, particularly mammals such as seals, whales, guanacos, maras (a species of giant rodent), and also harbours important penguin colonies. Puerto Madryn Ushuaia