No person shall operate any boat or ride, pull or tow any aquaplane or water-ski or any other device within any designated swimming area or within fifty (50) feet of the existing boundary of any designated swimming area or boundaries which are marked by buoys placed fifty (50) feet apart and the area posted on shore by signs.
Cal. Code Regs. Tit. 14, § 4651
Note: Authority cited: Section 5003, Public Resources Code. Reference: Section 5008, Public Resources Code.