It'd be a rush, you gotta admit that :~D
I'll admit it.
But then, so is riding a roller coaster. Which is a ~safe~ thrill. ;-)
Speaking of which, some water coasters have a bridge at the bottom of the big drop so that folks can experience the wall-of-water thing.
They got one of those at Busch Gardens. I like to watch those folks get swept off of their feet by the wave!