DC DUCKS Land & Water Tours begins and ends at Union Station, 50 Massachusetts Ave. N.E. These nonstop 90-minute narrated tours aboard rebuilt World War II amphibious vehicles roll past the memorials and museums along the National Mall and splash down into the Potomac River.
Hours: Tours depart daily on the hour (weather permitting) 10-4, mid-Mar. through Oct. 31. Departure times may vary. Closed the Sun. before Memorial Day, July 4 and during the Marine Corps Marathon. Phone ahead to confirm schedule.