It looks like
El Caminito del Rey will no longer count in this thread. They've rebuilt it, and it's due to be reopened tomorrow. The new path is obviously a mixture of rebuilding the old one, and in places entirely replacing it with a new path, above the old one, which you can see below it in this video.
Still enough to make you nervous, but no longer in the "Never in a million years" category.
Click image for YouTube video