It depends on your bridging visa. Check your conditions. When the bridiging visa conditions are NIL AND it is in AFFECT, then you are allowed to go anywhere, as your 489 visa has expired and the conditions attached to your 475/489 visa have expired too.
However, if your briding visa has conditions like "has to live, work, study in Reginal Australia" then you are not allowed to go to the big cities.
My briding visa was granted on 9/05/2015 and has NO conditions.
Again, please check your briding visa if it is unconditionally and remember it has to be active, which means your 475/489 visa must have expired.
That is my understanding after a lot of research.
Hope that helps.