As used in this Part, unless the context requires otherwise:
(1) "Department" means the Department of Natural and Cultural Resources.
(2) "Park" means any tract of land or body of water comprising part of the State Parks System under this Part, including existing State parks, State natural areas, State recreation areas, State trails, State rivers, and State lakes.
(3) "Plan" means State Parks System Plan.
(4) "Secretary" means the Secretary of Natural and Cultural Resources.
(5) "State Parks System" or "system" mean all those lands and waters which comprise the parks system of the State as established under this Part.