 Waterfall is considered Sydney's most southern suburb and the city train service stops here.Correspondingly, Helensburgh is the northernmost suburb of the Wollongong Local Government Area and is considered the northernmost point, politically, of the Illawarra region, though geographically this is generally considered to be Bald Hill.Helensburgh has an uncrowded, friendly, carefree, and close-knit community with proximity to the beach and overall quiet, unpolluted bush surroundings.