Nik Wallenda appears live on 'GMA' from 50 feet in the air

The high-wire walker trains for his next big stunt live on "GMA."
2:41 | 06/14/19

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Transcript for Nik Wallenda appears live on 'GMA' from 50 feet in the air
There is a threat of rain on Now high-wire artist NIK Wallenda is joining us live from 50 feet in the Sarasota, Florida. Now, we've seen him cross the grand canyon and niagara falls. Now he's practicing for his upcoming performance right here in times square where he and his sister will walk from opposite ends and cross in the middle and excited to say Erin Andrews and I will host the live event. It will be exciting and, NIK, thank you for joining us. You're 50 feet up in the air. You're practicing for this unprecedented walk. So, you know what, how are you doing, man? How does it feel ask what's the view from up there? I'm doing great, man. The view is gorgeous. I love my hometown of Florida, out here practicing at Nathan betterson park. And we know, NIK, you've been intensely training for this for you feel like you're ready because the event is right around the corner. I do. I feel great. You know, me and my sister have been practicing for the last six weeks steadily. At least two times a day, probably four to five hours a day, sometimes longer and both feeling very confident and ready to do this. Ready to make history on June 23rd. And you mentioned your sister. We saw that video of your sister. She is so inspiring because she's back up on the wire at a significant height in front of a crowd for the first time since the accident in 2017. So how is she holding up rig now knowing this event is coming up on June 23rd? You know, she's doing really, really well. We're so proud of her. This wire that I'm walking on right now is about 50 feet high and 500 feet long which what we've done is tried to simulate the stabilizers and the way the wire will move as we're over times square and the first day she came out, it took her 22 minutes to get across. Well on Friday she had a breakthrough and finally realized she said I woke up in the morning and realized who I was and that I was a wire walker and I shouldn't be listening to that fear and those voices in my head telling me not to do this because this is what I was born to do with a 200-year legacy behind me and that day she got on this wire, nothing changed on the wire and did it in half the time. She walked in 11 minutes so we're so proud of her, again, this is just as much of a mental activity as a physical activity for sure and she's doing Well, you know what, n.ik, you're 50 feet above the ground and we cannot wait to watch this. "High-wire live" in times square with NIK Wallenda that airs Sunday, June 23rd right here on ABC.

This transcript has been automatically generated and may not be 100% accurate.

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