RanMarine makes the WasteShark ® and other ASV's that clear the water of plastics, oils, invasive plants and general trash. Autonomous, lightweight, agile, quiet and producing no carbon emissions: RanMarine drones are specifically designed for inland and near-coastal water, and Smart Cities - wherever humans live on water. RanMarine drones are also learning machines, continuously gathering data from the environment, sharing intel with a centralised database, and communicating with each other in the water. In this way our drones act as an autonomous, responsive, self-organising net: Sharks at work, serving the Sea.