This is what I found. Like Damo said for your dates May 31-June3 you can use the APH discount (if you are an APH holder) and get a rate at the Royal Pacific (water view room) of $907.00 for your entire stay.
Or you can book through the Mastercard deal and add another day free so it would be from May 31-June 4 for $1075.00 for your entire stay. Both include taxes.