Swirling currents, also known as EDDIES, are a type of water movement that occurs when a current or flow of water is disrupted. EDDIES form when the flow of water is disturbed by an obstacle, such as a rock or a bend in a river. The swirling motion of the water creates a circular pattern, which can be seen from the surface of the water. These currents can be powerful and can cause strong currents in the surrounding area.