A Round Dorset Walk is a long-distance route of 181 miles, on ancient paths and trackways, on the perimeter of one of the most remarkable counties in England. From the stunning Poole Harbour beneath the Purbeck Hills, the walker sets out towards the peaceful downs of Cranborne Chase, across the rolling hills of Blackmore Vale and Marshwood Vale, finally to return to the dramatic coastal path from which the walk began, there to complete a journey through 250 million years of history. Whether it is achieved in one challenging effort, or in a series of stages, it is a very special journey around a beautiful and often unexplored part of Britain, that will live long in the memory of anyone who completes it.