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Port of London Authority （24 个字符）

Port of London Authority, River Thames, navigational safety, marine experts, pilotage, vessel traffic services, estuary, Richmond lock, Gravesend, driftwood, hydrography, marine services, boat lift, launches, commercial services, cargo, shipping, london, container terminals, cruise ship terminals, navigational information, vessel navigation, ship movements, byelaws, safety on the river thames, leisure pursuits on the river thames, cruise ships, leisure facilitie,s river map, inland waterways, freight, commuting （516 个字符）

The Port of London Authority's operations cover 95 miles of the River Thames. The Port of London Authority works to keep commercial and leisure users safe, protects and enhances the environment and promotes the use of the river for trade and travel. （249 个字符）