The Vivid festival kicks off in Sydney with an incredible lighting of the Opera House Sails.
The spectacular 3D mapped projections have been designed by the same team who worked on the London Olympic Games Opening Ceremony.
Vivid just gets bigger each year, and the festival has expanded to include Martin Place.
A flotilla of ferries, cruise boats and water taxis will be lit up on the Harbour.
And there are installations at the Museum of Contemporary Art, the Harbour Bridge, plus a multimedia water show at Darling Harbour.