The first ship to call at the London Gateway on a commercial service put the new port in business today.
DP World, one of the largest port operators invested £1.5bn into creating the 2.7km quay. The cranes stand on an area that has been built using mud and silt reclaimed by dredging a 100km stretch of the North Sea.
London already has two ports on the Thames - Tilbury, upriver, and Thamesport, downriver - but London Gateway differs by being able to handle the biggest ships built.
Felixstowe and Southampton, the UK's biggest container ports both have five berths available for ultra-large ships.
London Gateway opens with one berth, a second will be available from next April with more following in line with demand.