thanks bailbr.. those thing on the water surface are water bubles created by the little fish that are in the water.
He was actually using his legs to stir them up, see where they where, then dive his head in to eat them.I'll post a picture of it for you to see.
Stunning shot.'There is no point pressing the shutter unless you are making some caustic comment on the incongruities of life. That is what photography is all about. It is the only reason for doing it.'......Philip Jones Griffiths