Every person who willfully trespasses and remains upon the land or premises of private recreational facilities, after having been forbidden to do so by the owner or the person having control over the facility, shall be punished by a fine not exceeding five hundred dollars ($500); provided, the existing rights of fishers shall not be infringed. “Facilities” as used in this section means private property used for games, sports, or entertainment, including, without limitation, golf courses, beaches, and bathing facilities.