^^Not here, theres coke but its notoriously impure and it'd give you a heart attack if I told you the standard price for a gram(of course when you have good connects things may be different)
In Sydney, Australia there are a few places where drugs are sold on the streets but as pkt said its not really open air. Most of the time you just ask some dude who looks like a junky and he'll be selling or he'll know someone close by who's selling. I get someone to score for me coz im a pussy, but the most common drugs the get on the street are heroin and ice(meth), anyone can go score that stuff but if you know the right people theres coke and prescription pills around(OC's MScontins) But most of it aint worth shit. Its pretty common to get ripped off unless you know someone reliable, and most times that ive been in these areas ive seen fights between dealers and customers.
The only drug ive found worth going to score is OC's because you know what your getting. Tried getting some meth once but it was mostly(if not all) sugar. If your going to use drugs in australia, find a house dealer, street dealers suck. But im being a good boy and gonna try to not use for a long time(how many times have I said that now?) so I dont need to score any shitty australian drugs. Because really, apart from pills, meth and pot, basically all drugs here suck or are overpriced.