Abstract: A light assembly and mounting apparatus for attaching fiber optic cable to the sides of a boat or other water craft for safety and enjoyment purposes. The light assembly includes a housing having a light emitter disposed in the housing for emitting light into a fiber optic cable disposed in a bumper guard that is incorporated into a frame member for attachment to the side of the boat. The preferred fiber optic cable is the side-emitting type that will illuminate the fiber optic cable along the entire length of the cable. The frame has a pair of upwardly and inwardly extending side members that securely enclose the bumper guard. A pair of cable guards extend outwardly from the frame beyond the outer surface of the fiber optic cable to protect the cable from damage. A cooling mechanism can be included in the housing to cool the light emitter.