Per our Parks Ordinance #199, Chapter IV - Regulations Pertaining to General Parkland Operation:
Section 5 - Aviation
It shall be unlawful to use park property as a starting or landing field for aircraft, hot air baloons, parachutes, hang gliders, unmanned aircraft systems (UAS) aka "drones", or other flying apparatus, unless otherwise authorized by permit.
Section 8 - Engine Powered Models or Toys
It shall be unlawful for any person to start, fly or use any fuel or battery powered model aircraft, model boar, model car, or unmanned aircraft systems ("drones"), or rocket or like powered toy or model, except as authorized with a use permit.