attaching the camera to his surfboard. his invention has the american family in mind. taking the camera to the empire state building. we're off the elevator and to the observation deck walking to that door. >> you have to be kidding me. >> if you look closely, right through those metal barriers you can see it. the freedom tower standing high above the rest. he sticks his go pro out with that extender. look at us and look at the view below. but our next stop was even higher. right up there in the shadow of the spire. >> i have to hang out with you more often. >> reporter: right up to the 102nd floor. we go up one last set of stairs. >> this is exclusive access. >> all right. >> we climbed the stairs more than 1250 feet up. the 103rd floor. the door locked but we get the key. just look at the view. >> go-pros are used by filmmakers and by moms and dads.