The walk is tough and very hard to navigate with map an compass at night in parts....the maps in this book are great but I just transferred the route on to my satmap from the book. But still if your thinking of doing this challenging walk then this is about the best book for the job. GOOD LUCK.
I rated this edition with 5 stars as I have read previous editions although they too were good it was nice to see and read an updated edition with coloured map routes. The author knows his stuff on this particular walk.