When we were there during the Olympics they docked our ship (Seabourn Sun) in Darling Harbor. We felt a bit left out - Crystal was at Circular Quay along with one of the Silver Seas ships (I think). There were lots of cruise ships there being used in much the same way the Navigator is in Jacksonville.
Because Voyager arrived early they probably had to take any dock space that was available.
I'm sure one of our onboard reporters will give us the lowdown!