July 2010 accident The tugboat operator served a one-year sentence for “the maritime equivalent of involuntary manslaughter.” Six years after the accident, Ride The Ducks ceased operations in Philadelphia.

Though the origin of this term is unknown, it probably refers to the odd shape of the vehicle. DUKWs became known as “Ducks” and are still in use, as well as purpose-built amphibious tour buses, primarily as tourist transport in harbor and river cities.