 The street is the main link between the two cities of Westminster and London . It runs eastward from Trafalgar Square , parallel to the River Thames , to Temple Bar which is the boundary between the two city districts ; the road ahead being Fleet Street . Traffic travelling eastbound follows a short crescent around Aldwych , connected at both ends to the Strand . The road marks the southern boundary of the Covent Garden district and forms part of the <unk> business improvement district . 
