It is based upon a walk taken by the well-known veterinarian and writer James Herriot. It visits his favourite locations and places where he lived and worked for many years, made famous in his books “James Herriot’s Yorkshire” and “All Creatures Great and Small”. It starts and ends in Aysgarth in the heart of Wensleydale, famous for its cheese as well as its waterfalls, and passes through fabulous Swaledale with its wildflower meadows and landscape of limestone dry stone walls and barns.