P&O Cruises Australia is a British-American owned cruise line and the sister company of P&O Cruises in the United Kingdom. It was previously a constituent of the Peninsular & Oriental Steam Navigation Company and has a direct link in history to the world's first passenger ships. P&O Cruises Australia currently operates three ships, sailing from various ports in Australia and New Zealand. It appeals to adults and families looking for a resort-at-sea experience while visiting destinations in the Pacific.