Climbing to the summit of a mountain in the Grand Tetons would have been enough for some, but when Marcie Hahn Knoff reached the top of the 13,770-foot mountain, she started hooping. “What do you do when you get to the top of the mountain,” Marcie told Begrade News. “You could sit around. Or you could hula hoop up there.” Summit hula hooping is also contagious. Marcie, who lives in Bozeman, Montana, told the paper that every time she reaches the top of a mountain and starts hooping, others inevitably want to join. She even got her husband, a guide for mountain treks, into hula hooping. While Marcie prefers mountain hooping to scheduled hoop jams, she’s still happy to help people learn if they ask her. This summer she hosted a one-day only kids hula-hooping camp. The spots filled up right away and the kids had a blast learning a few tricks. She makes and sells hoops too. “I enjoy making the hoops and hooping myself. I don’t think I’ll ever be a big performer or have a lot of time to market them a lot.”