Please see the most recent updates in the "Where did the .com name go?" thread. Posts number 16 and 17.
That was quite the video, there were a couple of places where I almost grabbed hold of the arms of my chair. I assume the he had the camera on his head?
http://en.wikipedia.org/wiki/Caminito_del_Rey

There is some question as to whether the guide rope would actually support you should you need it, however...
Brian
It looked to be up to the job....I'm sure that the walk would be closed off to the public if it was truly unsafe?![]()