All the national parks in England, Wales and Scotland have an aim and purpose to promote understanding and enjoyment of the 'special qualities' of their area.
The special qualities of national parks include their:
The rural communities who live and work within the parks now - and the history of the people who've lived there in the past - are also part of what makes these areas special.
It is the combination of these special qualities that led to these areas being designated to be protected as national parks.
Here are the top 10 special qualities for each of the UK's National Parks: