Well, I'm new to the sport, just bought a trainer kite, and I'm hopelessly hooked.

I've already done all the trainer exercises, and before I take my first lesson, I want to try to more closely emulate real kitesurfing (without buying more gear).
Here's my plan... I've got inline skates and carving skateboards (which I'm fairly good at). I want to find a large open paved area to use my trainer kite to pull me around on my wheels (starting with inline skates for their ease, then changing to skateboard for better simulation).
Does anybody know about any large, open paved areas (without many "islands" or light posts, or other stuff that I could run into or wrap a kite around), that aren't full of cars or other stuff during certain times of the week? Like, weekends, or Sundays or at night?
Something around the northern beaches of Sydney would be ideal...