On Friday, an aircraft hired by Google will be doing a series of low-level swoops over parts of Sydney, photographing the ground and waters below.
The three-seater plane, decked out in Google livery, will have special permission to fly at an altitude of 600m.
Providing the photographs turn out to be good enough quality, the images will be integrated into Google Maps, the free online mapping service used by millions of people around the world.
Via SMH, links to Google site about the flyover.