Vic Uni exams finished last week. Lots of parents probably coming and going from Wellington to help kids pack up flats etc.
I found that for Akl uni anyway when it starts in early March you have to book the hotels up in Akl way before March because if it also coincides with a cruise leaving Akl it's nearly impossible to find accomodation close in.
Just saying the uni start and finish dates affect towns for accomodation and probably flights as well.