Australia's Olympic team are being welcomed home in Sydney with a traditional street parade.
Thousands of Sydneysiders are expected to line George Street, starting at Circular Quay from noon (AEST) on Monday.
NSW Premier Barry O'Farrell and Sydney Lord Mayor Clover Moore will then host a welcome home ceremony at Town Hall for the athletes, including medallists Sally Pearson, Tom Slingsby and James Magnussen.
Police are advising motorists to expect delays, with George Street to be closed between Hickson Road and Goulburn Street from 10am until 3pm.
Nearby Bridge, King, Park, Market and Hunter streets will also be closed.
Bus services will be diverted away from George Street onto Elizabeth Street while the roads are closed.
Basketballer Lauren Jackson, who carried the Australian flag at the opening ceremony, is visiting the National Centre of Indigenous Excellence in Redfern ahead of the welcome home parade, with Basketball Australia chief and former premier Kristina Keneally.
Australia won 35 medals at the London Games, including seven gold, 16 silver and 12 bronze, leaving it 10th overall on the medal table.
This was the lowest gold medal tally for the Australian Olympic team since the 1992 Barcelona Games.
Police Superintendent Julian Griffiths said extra resources would be deployed for the welcome home parade, a week after the London Games finished.