It is located entirely within the county of Cumbria, and all the land in England higher than 3,000 feet (914 m) above sea level lies within the National Park, including Scafell Pike, the highest mountain in England. It also contains the deepest and longest bodies of water in England, respectively Wast Water and Windermere.
The Lake District National Park includes all of the central Lake District, though the town of Kendal, some coastal areas, and the Lakeland Peninsulas (sometimes included as part of the Lake District) are currently outside the park boundary.
The area was designated a national park on 9 May 1951 (less than a month after the first UK national park designation — the Peak District). It retained its original boundaries until 2016 when it was extended by 3% in the direction of the Yorkshire Dales National Park to incorporate areas such as land of high landscape value in the Lune Valley.
It is the most visited national park in the United Kingdom with 15.8 million annual visitors and more than 23 million annual day visits, the largest of the thirteen national parks in England and Wales, and the second largest in the UK after the Cairngorms. Its aim is to protect the landscape by restricting unwelcome change by industry or commerce. Most of the land in the park is in private ownership, with about 55% registered as agricultural land. Landowners include:
The National Park Authority is based at offices in Kendal. It runs a visitor centre on Windermere at a former country house called Brockhole, Coniston Boating Centre, and Information Centres. It is reducing its landholding.