Circumnavigation is the act of going around something. The word is usually used to mean a journey made around an island, continent or, more often, the world, especially when made by sea.
The first maritime circumnavigations of the globe were:
... 5,011 families residing in the town. The population density is 1,549.2/km² (4,010.1/mi²). There are 6,949 housing units at an average density of 546.4/km² ...