Paper: Wallenda Plans Grand Canyon Tightrope Walk Aerialist Nik Wallenda says he's planning to cross the Grand Canyon on a tightrope, but he won't be wearing a safety harness like he used at Niagara Falls. Wallenda told Sarasota Herald-Tribune (http://bit.ly/R8yTh7) Tuesday that he has signed a contract with an unnamed cable network to broadcast the roughly half-mile walk. No date or exact location has been announced yet. In June, the 33-year-old Florida aerialist crossed a 1,800-foot span over Niagara Falls. The event was televised live by network ABC, which required Wallenda to wear a safety harness despite his protests. The paper says his contract for the Grand Canyon walk specifies he doesn't need a harness. "We cleared that up on the front end this time," Wallenda told the paper.