he has his friend kaitlyn with him, too. she has the coolest reaction. >> sometimes that's all you can get out. >> i want to know what it takes to build the courage to do this. >> we have them joining us via skype. how do you work up the nerve to do this. >> just an extension of what i've been doing on my mountain bike. unfortunately moved, bought my own gear, set it up. it took a few minutes to work up the nerve to step off but it was a rush. >> tell us about tying a rope off the bridge, what you're wearing and how you stay safe. >> bigger is better. i'd rather -- you have to know your rope, rigging. i do a lot of rock climbing. i got one sufficient, one for safety. >> can you describe for me what it feels like. >> you jump off at first, you're like, i'm going to die. then you go from feel like you're going to die to having the biggest blast of your life. >> at the beginning feels like you're not falling and then you swing. >> correct me if i'm wrong, looks like in the video you have to climb back up. you have to climb. >>