Duck tours, or DUKW tours, are tours that take place on purpose-built amphibious tour buses or military surplus DUKWs and LARC-Vs.
Duck tours are primarily offered as tourist attractions in harbor, river and lake cities.
The first "duck tour" company was started in 1946 by Mel Flath and Bob Unger in Wisconsin Dells, Wisconsin. Flath's company has changed ownership since, but it is still in operation under the name Original Wisconsin Ducks. His family continues to operate a duck company called the Dells Army Ducks in the Wisconsin Dells Area.
DUKWs operated by Boston Duck Tours have been used at least five times since 2004 for "rolling rallies" to celebrate sports championships by New England-based local pro sports teams. The Boston Celtics celebrated their 2008 championship, the New England Patriots celebrated their championships (including February 2017) and the Boston Red Sox celebrated their 2004, 2007, and 2013 World Series victories with a parade of 17 DUKWs carrying members of the team over land and across the Charles River. The Boston Bruins also celebrated their 2011 Stanley Cup title with a duck boat parade.
The Seafair Pirates in Seattle use a DUKW "Moby Duck" modified to look like a Spanish Galleon as their primary means of amphibious transport.
Liverpool's 'Yellow Duckmarine' tours (as at June 2013) had 4 DUKWs, of which one saw service in the D-day landings. These are no longer operating due to the liquidation of the company.
London's "London Duck Tours limited", currently owns 13 vessels of which multiple saw action in D-day. They are currently the only company currently operating DUKWs in the UK
Viking Splash Tours in Dublin operate 6 Dukws in Dublin City using a Viking theme as a basis for the tour encouraging passengers to wear Viking helmets and 'raid' the city by roaring at 'the Celts'.