Abstract: A system for controlling a watercraft includes a wireless communication device corresponding to a passenger of the watercraft. A controller is in communication with the wireless communication device and the watercraft. The controller is configured to receive range information corresponding to a target distance between the watercraft and the wireless communication device. The controller is further configured to receive displacement data corresponding to an actual distance between the watercraft and the wireless communication device. The controller is further configured to compare the displacement data to the range information. The controller is further configured to determine an overboard condition based on the comparison of the displacement data to the range information. The controller is further configured to communicate an instruction to control the watercraft based on the overboard condition.