Crazy 400Ft Cable Bridge Free Climb

This is nuts.  I don't have a huge fear of heights but this made me nervous.  Looks to be three teenagers and their "allstar" father just going for an afternoon climb.  Seems like nothing to them.  There is no way I could ever do something like this.  Hell, I freak out if the seat belts on roller coasters aren't cutting off the circulation to my legs.  Could you do something like this?

Ukrainian Teens Climb 400Ft Moscow Bridge - Watch more Funny Videos