Swallows and Amazons by Arthur Ransome
Arthur Ransome set five of his books of the Swallows and Amazons series in the Lake District. This series features the activities of two groups of children who spend their holidays in the Lake District. Their names are taken from the small boats each group uses.
The children in the books enjoy real and imaginary adventures on and about the Lake District as their pretend games often spill over into real difficulties. The Swallows and Amazons often pretend conflict, but are drawn together to oppose real threats their united existence. This series is credited with enhancing the tourist reputation of the Lake District.