70.8% is the percentage of ocean covering the earth's surface relative to landmass. So it makes sense that some of us think about going to sea to see the world. It's an expeditious way to do so. You can get from here to there with all your favorite things and without having to pack and repack all the time. Cruising by boat really is a great way to see the world. And at an average of 6 knots, you actually get to see literally everything and experience the journey without getting jet lagged.