The other week I was taking an ‘Easy’ rated walk on the Downs. If you were with me that day you may remember my encouraging you to walk the famous 0.5 mile tree avenue at a fast pace. Someone said ‘But this is rated an easy class!’. ‘Ah’ I said, ‘but easy doesn’t actually mean easy on your fitness – otherwise you won’t ever get fitter. It means… well it means that the Downs is an easy place to walk because it’s generally flat’.