Last June, Wallenda captured the nation's attention during his 25-minute agonizing amble above the roaring rapids of the Niagara.

CNN: January 29, 2013 -- Updated 1437 GMT (2237 HKT)

We also climbed the rocks beside a roaring run of white-water rapids on rivers that have never been navigated.

CNN: ASIANOW - TIME Asia | 'There Was Method to My Madness'