"Bathymetric [or sea-floor terrain] data is often collected from boats using sonar to take measurements of the sea floor," the statement added. "The lines reflect the path of the boat as it gathers the data."
In the summer, Google Earth helped British teenagers start a new craze: pool dipping. The cunning teens used Google Earth to find homes with pools and then organized pool parties using social networking sites. This led a police representative to tell the U.K. Telegraph, "We are advising owners of swimming pools to be on their guard and extra vigilant. We would also warn prospective swimmers that using someone else's pool is trespassing and therefore illegal."