Antarctica is a continent surrounded by oceans. Reaching the continent requires either sailing across the ocean or flying over it. The body of water between South America and the Antarctic Peninsula, the infamous Drake Passage, is known for its sea sickness-inducing violet storms. Crossing from South America to Antarctica by ship takes two days, while Antactica XXI's flight takes only two hours. You can use the precious time you save to explore more of South America whereas Antarctica XXI offers expeditions aboard small ships too.