Harbors and Navigation Code section 658
(a)
No person shall operate a vessel on any waters for towing a person or persons on water skis, an aquaplane, or a similar device unless there is in the vessel a person at least 12 years of age, in addition to the operator, in a position to observe the progress of the persons being towed.(b)
No person shall operate a vessel on any waters of this state towing a person or persons on water skis, an aquaplane, or a similar device nor shall any person engage in water skiing, aquaplaning, or other similar activity at any time between the hours from sunset to sunrise, except that those hours do not apply to those waters of this state as to which prohibited hours for those activities are fixed by local ordinances, laws, or regulations enacted pursuant to this chapter.(c)
Subdivisions (a) and (b) of this section do not apply to a performer engaged in a professional exhibition or a person or persons engaged in a regatta, vessel or water ski race, or other marine event authorized pursuant to Section 268.(d)
No person shall operate or manipulate any vessel, towrope, or other device by which the direction or location of water skis, an aquaplane, or a similar device may be affected or controlled so as to cause the water skis, aquaplane, or similar device, or any person thereon, to collide with, or strike against, any object or person. This subdivision does not apply to collisions of two or more persons on water skis, aquaplanes, or similar devices being towed by the same vessel.(e)
No person shall operate water skis, an aquaplane, or a similar device so as to endanger the life, limb, or property of any person.
Source:
Section 658, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=HNC§ionNum=658. (accessed Apr. 24, 2025).