The BO-AT (pronounced:bow-at) or Buoyancy Operated Aquatic Transport was the "new" invention Dr. Heinz Doofenshmirtz wanted to market when he planned on flooding Danville. Described as being like a car that can drive on water, the BO-AT was really just a Motorboat. His scheme was to open the Danville Dam and create a city like Venice, Italy or, according to him, to a lesser extent, Venice, California so that people would have to buy his BO-AT.
The scheme was foiled when Agent P opened the M.O.A.T. also known as the Metropolitan Oval Aquatic Trench which then diverted all the water into going around Danville.
- The Danville Dam is the same one he destroyed in "Oil on Candace".