A self-contained boat cleaning system that dispenses water, soap, wax and/or spot-free rinse chemicals. Cleaning fluids are distributed via conduits which can be concealed inside the rub rail, mounted near the rub rails or other surfaces of the boat, or alternatively can be installed inside the bulkheads of the vessel. Fluid apertures direct the spray of water and/or cleaning fluids to predetermined surfaces of the boat. A pump and associated reservoir system (containing built in reservoirs for cleaning fluids, chemicals, waxes, spot-free chemicals, etc) can be mounted anywhere inside the vessel. The water supply used by the system can be supplied either from shore water or from a fresh water holding tank on board and fed into the onboard water filtration system. An optional timer which can be used to start the process at predetermined times. In addition, the boat washing system can be activated via remote control.