That has to be awe inspiring. I don't think I'd have the balls to jump into the ocean with anything let alone a giant Humpback whale. I know they wouldn't hurt anyone on purpose etc. But, I always think of that video of the woman who was swimming with Pilot whales when one grabbed her leg and started dragging her down really deep before it brought her back up. Blame Steven Spielberg and JAWS for the fear of the ocean...