Duck tours, or DUKW tours, are tours that take place on purpose-built amphibious tour buses or military surplus DUKWs and LARC-Vs.
http://en.wikipedia.org/wiki/Duck_tour
London Duck tour
By Mike1989 @ 2013-07-18 09:03:13
Links: www.londonducktours.co.uk
Unrated
Scavenger Hunt: Summer Vacation: DUCK tour vehicle (NOTE 4)