Clearly the kayaker was not expecting such a surprise and it takes him a several seconds to decompress from the shocking event.
The video is 1:04 in length and the shark makes its appearance at the 11 second mark. The breach is also replayed at the end of the video in slow motion. Enjoy the wild ride!!
[EDIT 10/03/14 - Isaac informed us on our Facebook page that it was a galapagos shark that tried to snack on his kawakawa.]
Photo is a video screenshot.