River Thames Thames Estuary), the river is subject to tidal activity from the North Sea. Before the lock was installed, the river was tidal as far as Staines, about upstream. London, capital of Roman Britain, was established on two hills, now known as Cornhill and Ludgate Hill. These provided a firm base for a trading centre at the lowest possible point on the Thames. A river crossing was built at the site of London Bridge. London Bridge is now used as the basis for published tide tables giving the times of high tide. High tide reaches Putney about 30 minutes later than
Queen Elizabeth II Quay Queen Elizabeth II Quay Queen Elizabeth II Quay, also known as QE II Quay () and by residents as the Deep Water Quay, is a locality in Freetown, Sierra Leone. It is located on a promontory called Fourah Point (also known variously as "Farran" Point, "Farren" Point, and "Foura" Point) on the southern bank of the estuary of the Sierra Leone River between Destruction Bay and Cline Bay within the suburb of Cline Town directly to the east of central Freetown. It is the larger of two harbors within Freetown, the other harbor known as Government Wharf, Freetown Port, or