All persons engaging in diving shall mark the water areas where the operations are being conducted. When the operations are being conducted during daylight hours, the water areas shall be marked with one or more diver’s flags of sufficient size to be visible at a distance of not less than 100 yards. Where such operations are conducted during hours of darkness, the water areas shall be marked with one or more artificially illuminated marker buoys of sufficient size and illumination to be visible at a distance of not less than 100 yards. No person may display diver flags or marker buoys except during the time and in the water areas where diving operations are being conducted. (Added by Res. adopted June 30, 1975; Amended by Ord. 99-098 § 10, Dec. 8, 1999, Eff date Dec. 20, 1999).