I went a little over a year ago to both Seaworld and Dreamworld and my kids loved it..

We went with a friend so kids ages were DD 3 Friends DD 1.5 and DS 1.. All had a great time at both..

We are in QLD but nearly 2 hrs drive from the theme parks.. We are thinking of going and staying at Seaworld for a weekend getaway. Our kids are nearly 5 and 3.