This is an Expedition Cruise ship sailing through the Strait of Magellan and the Beagle Channel, and explores one of the wildest and most beautiful regions of the world: Patagonia and Tierra del Fuego, at the southernmost tip of the South American continent. Offering an alternative of 3 or 4 -night cruises, from October to April each year, Mare Australis sets sail every Saturday from the Chilean city of Punta Arenas, and every Wednesday from the Argentinean city of Ushuaia in Tierra del Fuego.