If you're looking for a truly off-the-grid adventure, consider cruises to Paradise Bay, Antarctica. This wild, remote harbor along the western coast of the South Pole is framed by glacial mountains that gleam in shades of the brightest white and electric blue. The surrounding waters are dotted with floating icebergs — and occasionally crabeater seals, humpback whales, and gentoo penguins. The earliest research work in the region was conducted here. Ask anyone who's made the trek to this isolated, one-of-a-kind destination, and they'll tell you that all of the best things to do in Paradise Bay, Antarctica, involve soaking up the surreal natural beauty you can only find here at the bottom of the world.