The board shall regulate, restrain, and control the kind of vehicles, and the time and conditions of travel or parking on such public parks, playgrounds, beaches, parkways, scenic drives, boulevards, open spaces, and other facilities for public recreation, and it shall employ a suitable police force and shall adopt all ordinances, rules, and regulations necessary for the administration, government, protection, and use of the property, improvements, and facilities belonging to the district or under its control.
The board shall, in general, do all acts necessary to the proper execution of the powers and duties granted to, and imposed upon, it by this article, and to manage and control the business and affairs of the district.
Ca. Pub. Res. Code § 5558