Curl my hair!!!!! I have GOT to road-test all of these! I once went on a water slide that clocked your speed as you rode down it. My cousin said my speed was 70 kilometres per hour. I didn't believe him ("Are you for real?") so I went on the ride again. This time I was clocked at 67 kilometres per hour. You had to ride with your hands clasped behind your head and keep your ankles crossed until you finished the ride. http://www.huffingtonpost.com/trivago/hotel-water-slides_b_3893777.html#slide=2887374