Hi Oz
Not sure how the canals compare but if you do Gold Coast this new ramp 28°01'40.15" S 153°25'38.40" E (GE) is good and as long as your talking mid week or early or late weekends its fine. Nice beach and you can cruise further up canal or down and do the Nerang river as well. Whiting on the sand in the river and nice large but smart bream where we are. Also mullet etc.
Which boat are you thinking of using?
PM if you are considering visiting.
Cheers
Chimo