To circumnavigate, to navigate a circumference, such as an island, a continent, or the Earth, is to travel all the way around the edge, particularly when in control of the route taken. It is a term used very much to describe travelling all the way around the world by any method. World circumnavigation In principle, if a person walks around either Pole, that'll have crossed all meridians, but this isn't generally considered a "circumnavigation." A basic definition of a world circumnavigation wo… (More on Circumnavigation)