This Ashurst to Brockenhurst walking route was posted by a contributor on the BBC H2G2 website. It's a brilliant little walk in the summer, rich in wildlife and atmosphere. An added bonus is that although it's a linear walk, there's a very regular (and scenic) rail service between Ashurst and Brockenhurst. When we last checked, the trains ran direct hourly, with a journey time of 11 minutes. The fare was £3.60 for an adult.