The best way to visit Antarctica is by expedition cruise ship, most of which depart from the port of Ushuaia, the southernmost city in Argentina, South America and the world. From Ushuaia, it takes 36-42 hours by sea to arrive to first views of Antarctica and the peninsula region. No small affair, a visit to Antarctica is a truly multifaceted, extensive journey before you even set foot on the continent — this is one of many reasons to go with an experienced tour operator.