|"Miranda" exits the River Thames".|
I have taken a London Duck Tour on a number of occasions, now, and find the tour offers something new, each time, while also offering unique views of the Unfinished City.
The guides are extremely knowledgeable about the sites that can be seen, on the tour, often throwing in pieces of trivia that, sometimes, I didn't know.
One of the highlights is, obviously, when the Duck splashes down in the River Thames, by the side of the SIS building, and glides up to the Palace of Westminster.
The tours are very popular and I would advise to book in advance, if you are going as a family or large group, although there is usually space available for individuals.
*On Sunday September 17, 2017, after 15 years, London Duck Tours ceased touring as they no longer had access to the slipway, due to Thames Water compulsory purchase order of said slipway, where the Ducks entered and exited the River Thames.
There is still hope that they will return some time soon.*
They are, however, currently available for Private Hire, although this only for land-based tours.