Sydney Olympic Park
Where do I even begin? There are so many activities on this massive playground that cater to kids that you really need just show up, take your pick, and let them run loose until they’re tuckered out. The swimming complex is a must, there’s a zipline course, parks and playgrounds galore, outdoor art, and even daily Segway tours. All of it’s fun, much of it’s free, and none of it will bore them.