Park. Most parks are sections of land set aside for enjoyment by the public. Many parks are used for recreation and to allow visitors to relax in a natural environment. Some parks are used for cultural and educational events, sports, rallies, and festivals. Parks come in many sizes, from a tiny city park less than a block square to national parks containing vast areas of wilderness. Local, state or provincial, and national governments throughout the world administer park systems. Some parks are privately owned and administered but admit the public. Other parks are not open to the public.