that is 18-year-old george mcgill he's a pro wakeboarder.hey saw the flooded garage and, ding, idea! let's go grab a pulley system. set it up. >> boy, doing it in this kind of area really ups the ante because you have to dodge giant cement pillars. you can go face first into one of those things. >> they were going really fast. they say probably faster than 50 miles an hour. >> do we know how deep the water was? >> in the parking garage they say it was two feet deep they say. but they didn't just do it here. they also found a flooded park where they could actually pull some tricks. they've got benches and he comes around one bench and jumps on to this other bench and even sparks! do you see this? and also wakeboarding was jackhammersly, he's a wakeboarding coach. he did fall, face first, but didn't get too injured. >> his name is jackhammersly? >> it is. >> that's an awesome name. >>> a sea creature swims up to show off. >> this thing actually goes into a bit of a performance. >> see how the manta ray proves. >>> and checking out some tricks.