Locator device that can be used to aid in the recovery of or to provide
positional information about a structure that becomes submerged. The
locator device for submerged structures consists of one or more modules.
Each module can be customized to incorporate one or more features
including a power source, a transmitter or source, a receiver or
detector, a fastener means, a computer, buoyancy means, a propulsion
means, and a communications means.