Buster that was an awesome find, thanks for sharing it. On the umpteenth viewing it still brings a smile to my face.
The first time I watched it on Utube I noticed some clown had posted something along the lines of Why would you do that?
Must have been watching with his eyes closed. There is nothing more pleasing than watching a bunch of kids mucking with waves or gravity! Dare I say it, at one with the environment?
Makes you also wonder who gets priority there

Pretty difficult to put a few rules in in that situation!