Skip the Sydney.
Brisbane, Gold Coast, Sunshine Coast is more then enough.
Really really please take note that you need to spend 1 day at
least at any worlds. So sleep early, wake up early, go down
your service apartments to get the 1st bus to the Worlds or you
will be rushing thru everything.
Do not take those go 5 places in one day tour. It will be
maybe 1 hour drive to destination, you go stand at the entrance of
that destination for 5 minutes, then get back onto the tour bus to
go another place in 3 hours to stand 5 minutes at that
location.
Wear your bikinis in place of bras and bring a extra set of
clothing and a towel. Worse come to worse, bring a towel.
