Rozi, a tugboat that once operated in Valletta's Grand Harbour, was scuttled in 1992 to serve as an underwater tourist attraction for submarine tours and an artificial reef for scuba divers. Located near Mellie?a, the wreck is approximately 35 meters long and rests upright on a sandy bottom, with its mast beginning at a depth of 20 meters and most of the wreck lying between 30-35 meters.