Her resolve to complete the performance was such that she did it twice while she was up there: "I felt good enough to where I was able to hang by my teeth a second time." She wore a custom-made mouthpiece in order to complete the stunt and, per New York State labor law, was tethered to the helicopter while performing it.
The terrifying feat still involved serious preparation of course. "This is something that we train for, so I'm not just going to go out there and be like, 'Oh, I hope for the best,'" she said.
Wallenda timed her history-making hangout over the falls exactly five years after her fellow-daredevil husband Nik Wallenda walked across the length of the falls on an 1800-foot tightrope. In their press conference her husband told reporters that they're looking to build a permanent attraction in Niagara Falls.