Have you seen the Sydney Vivid Festival? 'Get along little dawgy' as it's only on until the 13th June.
You must see the Opera House, from 6pm any night and Customs House and Fire Dance at Campbell Cove.
Our family favourite was the large stone, colonial facade of Customs House which turns into overflowing water, fire, glass, mercury and hundreds of abstract designs. We stood spellbound for 20 minutes.