Nik Wallenda Says Volcano Stunt's a Go Despite Recent Daredevil's Death

Famed tightrope walker Nik Wallenda's not the least bit shaken about his upcoming volcano stunt after another daredevil's recent death -- 'cause he says life or death is just his thing.

We got Nik out Thursday in NYC, and wondered if he's at all concerned about walking over the very active Masaya Volcano in Nicaragua next week. That will come on the heels of daredevil "Mad" Mike Hughes' fatally crashing a rocket in California.

Nik, who last summer tightrope walked 25 stories over Times Square, says there's no doubt he's risking his life but this is the business he was literally born into, and risk is just his reality. That being said, Nik admits he has some logistical concerns ... with the volcano itself.

He says the acidic gases it emits add a layer of stress. Nik, who is training with wind machines and an oxygen-deprivation mask, said the volcanic gases could pose a real threat to the wire. Then there's the heat, but oddly he's less worried about that.