"In 1973, Roger Deakin, a British writer and environmental activist, acquired a tumbledown sixteenth-century farmhouse outside the ancient village of , in , and began a restoration, repairing stone walls and replacing roof tiles. Among the attributes of Walnut Tree Farm, as the house was called, was a deep, spring-fed . It didn’t surround the house, as with a fortified castle, but was excavated into the land, in roughly parallel lines, at the front and the back of the property. The moat had served its original, Elizabethan owner as a water supply, a cooler, and a status symbol. Over the centuries, it fell into disrepair, becoming silted up from falling leaves and rotting tree roots. Deakin had the moat dredged to a depth of ten feet; staked a wooden ladder by the bank, near the spreading roots of a tree; and began regularly swimming in the cold, greenish water. He gained what he called a frog’s-eye view of the changing seasons, and an intimate familiarity with the creatures sharing the moat, from to s."