Up on the Tightwire

Herald-Tribune

 ( ... one side's ice and one is fire) Nik Wallenda is getting ready to walk across the Grand Canyon (just outside of the national park boundary, rangers want you to know) on June 23. Without a harness, without a net. How high up will he be? “I tossed a rock over the edge, and it took eight, nine seconds to hit the bottom,” he said. “That's a long time to think”: http://www.heraldtribune.com/article/20130608/article/130609677?tc=obinsite

   Wallenda's walk will be televised live on the Discovery Channel (video): http://science.discovery.com/tv-shows/nik-wallenda-beyond-niagara/videos/nik-wallenda-beyond-niagra-breaking-point.htm