Last chance to catch Vivid festival

The spotlight on Sydney's Vivid festival is about to fade.

The sixth annual light, music and ideas festival, which began on May 22, will end its 18-day run on the Queen's Birthday public holiday.

Vivid attracted more than 280,000 Sydneysiders on its opening weekend, organisers say, but the full attendance of the festival won't be known until later in the week.