I came across this YouTube video and was knocked out. I’d love to do this Grand Canyon walk, but if not, this video is close enough to the real thing. On first viewing I thought the narrow path was rather scary, but each time I’ve come back to the video I’ve thought “I could do that!”. If you can watch it full screen and in HD (ideally 4K if your computer and broadband are up to it), you’ll get the maximum experience. Magnificent.