Disembarking

On return from our cruise with the Dawn Princess we are due to berth in Sydney at 07.00. Will really appreciate posters' views on the time taken to disembark, given that we need to be at Sydney airport to catch a domestic flight at 14.40. Is a taxi the best to use for the transfer? Is early breakfast served on this day? Any and all information gratefully received. Thank you all in advance, Nevl Question