IMG_1041 - Vivid: Opera House
Part of the midwinter Vivid festival was the Smart Light Walk. It's major focal point was the projected coloured designs on Sydney Opera house. They were projected from the upper walkway of the old Overseas Terminal across Sydney Cover.
Along & near the walk between the two were a lot of light-based installations, which continued up into The Rocks onto Observatory Hill. The times I saw them, there were musicians around too, but there are usually buskers & such in the area.