Abstract: A locking apparatus having a padded U-shaped metal band sized for attachment encompassing a rear section of a surfboard anterior to a rear fin. An elongated cable, preferably metal, having looped terminal ends is provided. A padlock secures two ends of the U-shaped metal band together and one looped terminal end of the cable to the U-shaped metal band. The other end of the metal cable can be attached to an anchorage, positioned inside a locked door of a vehicle, or attached to any permanent fixture where locking is feasible. The method for locking the surfboard to a vehicle or to an anchorage includes steps to encase the surfboard locked in the locking apparatus and attached by cable closed in the locked door of a vehicle or attached to an anchorage.