The ripples are deep gold in the sunset light as we paddle across Coniston Water towards Wild Cat Island. Officially known as Peel Island, this is where the children camp in Arthur Ransome’s Swallows and Amazons. The canoe glides between rocks into the hidden harbour with its pebbly beach, and we climb, excited as kids, up through bronze-leaved oaks and tall pines to explore the clifftop clearings.