This is a long day out with an exposed ridge line walk i.e. Helvellyn & Striding Edge or Blencathra & Sharp Edge. You need to be physically fit and be able to walk up to 14km or more in a day with over 1000m of ascent/descent. The day will be up to 8 hours long. You will need to have a head for heights, as parts of the walk will be exposed to a big drops, on either sides of the ridge. Finally; this will be a challenging day out, both in terms of the duration you will be out on the hill, and the mental and physical demands exposure will have on you.