Arn Hill rises to over 650 feet above sea level and its woodland was donated to the town by the Marquess of Bath in 1920. The Wiltshire Wildlife Trust have established a nature trail around Arn Hill which passes a former lime-kiln (now in ruins) and rises above the old-fashioned sheep walks of Kidnapper's Hole. This two-mile footpath circles the golf course with distant views to Salisbury Plain to the south and Longleat estate and Cley Hill to the north.