There’s a South Pacific island positioned midway between Australia and New Caledonia featured on various marine charts, world maps, and has appeared in publications since at least the year 2000. It’s listed as Sandy Island on Google Maps and Google Earth, and yet Australian scientists have just discovered it doesn’t exist.
As part of a 25-day voyage, the group went to the area, only to find a 1,400m (4,620ft) deep section of the Coral Sea. The team collected 197 different rock samples, more than 6800km of marine geophysical data, and mapped over 14,000 square kilometers of the ocean floor. This is just a reminder that a map is only as reliable as the information used to compile that map (see BBC article as well). For another reminder of this same idea see "The Republic of Null Island."