Cruise for the west side?

Is there a cruise for people in perth?
this sounds really interesting and im fully keen.
or do i have to fly over to brissy for and board there?

the cruise departs from sydney so u'd hav to make ur way over here 1st. not sure if it's too late to book.. i kno they were supposed to be already in but i know there's still empty rooms.. so jus call P&O n ask em bout it.. it'll be worth it, i'm goin on the 8th.. so ecxiting!