Don't ask me to order a beer by the size - SA, Vic and NSW have different names for all of them. ARRGGGHHH.
So SA have a distinctive accent because we didn't start with convicts. Just ask us to say something like "annoy", "dance" or "castle" or "southwark" (but that's age dependent".
I have noticed a distinct Rural accent, several Sydney accents, a gay man's accent, mediterranean accent - which overlaps with english as a second language accent.
And time to walk the dog again.