I love how this starts with the disclaimer that this isn't a climbing route, it's just a hiking trail! Heh.
I seriously doubt I would ever "hike" this "trail" unless I get bit by a radioactive spider first and develop Peter Parker-like superpowers, but I have to admit that the very concept of this "trail" really fires my imagination something fierce.
Check out this neato youtube video of someone hiking a portion of it. And read the article linked above, including looking at the pictures, which are enough to give me vertigo even sitting here in my office chair. For best results, pick the HD option and watch full-screen.