Ticked this one off my list on a beautiful day, a good 31st birthday. At least it was a good day until the wife decided she wanted to take a "quick" route down to the west which turned out to be rather more of a scramble than she had bargained for!
Great view: well worth the walk if you visit Edinburgh.
Arthur's Seat! I hiked this as a 17-year-old when my family took a 3-week tour of England and Scotland. I hiked it in my brand-new, white tennis shoes that could be seen hundreds of meters away. All the natives were staring at them. Edinburgh is a wonderful place.