(A) Every operator of a motorboat or personal watercraft shall, at all times, navigate the same in a careful and prudent manner and at such rate of speed and along a course as not to endanger persons or property.
(B) It Is unlawful for any person to operate a motorboat or personal watercraft at a rate of speed greater than will permit him in the exercise of reasonable care to bring the motorboat to a stop within the assured clear distance ahead.
(C) It is unlawful to operate a motorboat or personal watercraft in a careless or reckless manner. Reckless navigation of a motorboat shall include operating the same in a manner which unnecessarily interferes with the free and proper use of Lake Okabena for purposes other than boating or unnecessarily endangers other boats therein, or the persons in them.
('69 Code, § 6.32, Subd. 3) Penalty, see § 10.99