I've already seen that video and used it a few times. I was planning on taking my wife, but when she saw that she decided to pass. My son jumped right in and said he'd take her place.
I showed it to my 74 year old Dad this weekend. He asked, "They're driving on rocks?' I told him yes, that's part of the trail. He said, "On purpose? Why would they want to do that?" I told him, for fun Dad. He still didn't get it.