Sharks swimming across skyscrapers, giant glowing orbs in the middle of the footpath, and neon splashes across the Sydney Opera House.
This year's Vivid Festival has Sydney sparkling more than ever, with 57 separate installations on buildings, in parks and footpaths across the city's waterfront and surrounding streets.
Even the ferries scooting across Sydney's Harbour are lit up this year.
Like moths drawn to a flame, record numbers around the one million mark are expected to attend the three-week event, which is now into its sixth year of mixing light and art with music and cultural - they call them "ideas" - events.
This year's attractions range from headlining acts The Pixies, Lauryn Hill, St Vincent, Midlake and the Pet Shop Boys, through to videogame discussion panels, art installations, literary events and more.