Swimmer (BEAM)

In BEAM robotics, a swimmer is a robot that functions on or in a liquid environment. These are sometimes referred to as aquabots or aquavores (the latter being a misnomer, as they are not "water eaters"). Swimmers include various designs, but usually lie within a device class that can be delineated as a watercraft, usually a boat but includes any vehicle designed to move across (or through) water.