Well, this looks like fun…
A group of US adrenaline junkies have an online hit on their hands after setting up a giant slip-n-slide (you know, those homemade plastic waterslides that you get all soapy and wet so they're slippy enough to… um, slide on) to propel them off a 50-foot cliff and into the waters of Lake Powell, Utah.
The stunt was the brainchild of YouTube star Devin Graham, who under the name 'Deven Super Tramp' conceives, films and posts videos adrenaline-fuelled adventures in the American wilderness.
Nice work, if you can get it - but as the filmmakers warn: "The stunts performed in this video were done by trained professionals and under the supervision of professionals, we insist that you do not try this at home.”
They're not kidding - watch the behind the scenes footage if for nothing other than the immortal line "pretty much everybody got hurt in the making of this".