--ARCHIVED as of 31 January 2020-- The FLAG area covers the North Thames from Thurrock to Shoeburyness in Essex and is based around the port at Leigh-on-Sea. The port is the first when travelling up the Thames from London and has significant cultural importance in the area, attracting tourists from all over South East England. The major fisheries industry in Leigh-on-Sea is the cockle fishery which dominates much of the port. However, there are also several trawlers targeting mixed fisheries in the Greater Thames and Southern North Sea areas