Wow. I'm not sure what impressed me more - the humpback vocalizations or the fact that this 'Crazy Cameraman' must have nerves of steel. This video was captured in South Africa by Graeme Duane of Earth Touch productions, and it's well worth a watch. Having just returned from Maui, where I saw many humpbacks displaying, I am reminded that I was watching from a great distance. I cannot imagine the adrenaline rush that would come along with being this close to one in the water. Kudos Graeme!