If you haven't done this walk before, it comes highly recommended! If you don't do hills, and you don't mind a little paddling, you must do this one. We've done it twice now, and I never feels like the advertised distance. Even if it isn't on your bucket list then stick your name down anyway!
I had no idea he was 80. If he ever retires I wonder if any one else could take over? I did the first geo one in 2010 but haven't been back. I think might make a return for this one.