What is the UK’s largest national park?

The Lake District is the UK's largest national park, covering an area of approximately 2,362 square kilometers in northwest England. It is renowned for its stunning landscapes, which include mountains, forests, and numerous lakes, and is a popular destination for outdoor activities such as hiking, cycling, and boating. The park features England's highest peak, Scafell Pike, and its deepest lake, Wastwater. The Lake District's natural beauty has inspired many artists and writers over the years, making it a significant cultural as well as a natural heritage site.

While the other options mentioned, such as the Peak District, Yorkshire Dales, and Snowdonia, are also well-known national parks with their own unique characteristics and attractions, they do not surpass the Lake District in size.