Dirt track Sydney

Heyo

I've recently done some work on my ute and I need to verify if my 4x4 high and low range are actually going to work properly without binding.

Anyone know of a dirt track close to Sydney? I don't want to waste a whole day doing a trip or a full on 4x4 track. Just need something that will allow the front end to spin when locked.

Or is there a beach that you can drive on nearby?