Princess Cruises will hold the title for the largest ship to ever squeeze beneath the Sydney Harbour Bridge this Wednesday when the Sun Princess passes under it’s span at 5:45am.  At a height of 49.4 m above the waterline, just 2.5m will seperate the ship and Sydney landmark as it sails in after a month long cruise from the USA.  The ship will berth at Wharf 8 Darling Harbour before backing under the bridge at 11am, enroute to Brisbane.