Walking tour: Put those comfy shoes on and wander around the streets of London learning about its dark, exciting and shocking landmarks. Valid: Tue, Thu, Sun 10am London sightseeing: See Westminster Abbey, St Paul's and Big Ben, Tower Bridge, Downing Street and Number 10! with a walking tour of London. Duration: The tour is 4-5 hours long with some breaks - a valid Oyster card will be needed as you go on the London Underground. 1 or 2: Why not grab a friend to take with you to share this exciting day trip with. See The Sights Tours: Specialising in London tours, the team have a wealth of knowledge and experience to share with you. London Sight Seeing Tour Ticket | Regional | Living Social