Wibmer said that it took him a few attempts because of the crosswinds, making the stunt even more terrifying. The wind (and his heavy breathing during particularly tense bits) is audible in the video. He pops up and onto the railing, and navigates around tight corners while maintaining his precarious position on the icy rail—and we get the view from his helmet cam, including every single wobble and full-body tilt to maintain balance.