Take two averagely sized, logically challenged people, two safety harnesses, one Sphere & a sizeable hill & what have you got? The latest extreme activity which will see you writhing around in a spherical universe where the sky is the ground & the ground is the sky & your stomach made a bid for freedom some time ago. You'll love it! Riding the Sphere down a hill at speeds of up to 30mph is fast-paced, exhilarating, & terrifying. Fastened in just close enough to see the fear & deranged excitement in your companion's eyes is something that you will never forget. And don't worry, with a safety harness & a 3 foot air cushion between you & the ground, you're entirely safe & free to enjoy the unique sensation of defying gravity in a controlled environment.