P&O Celebrates its 3 Millionth Passenger P&O Cruises Australia is excited to announce it will be welcoming its 3 millionth passenger onboard during the month of September! To celebrate, P&O Cruises are giving away up to $3 million worth of onboard cashback to passengers who book between September 19, 2011 and November 12, 2011. Other great deals include “Double past passenger discount” and “Double cabin category upgrade”. You could make savings up to $200 per person. So what are you waiting for? Book your P&O Cruise with DC Cruising Today!