[00:00.18]Narration: Although experienced, [00:01.37]cameraman Richard Woolocombe was understandably anxious. [00:05.10]Richard: I have never dived with tiger sharks. [00:07.97]And I'm incredibly excited on the one hand to see tiger sharks, [00:13.05]but also somewhat reticent, [00:14.83]knowing they have such a dangerous reputation [00:17.71]Narration: So shark expert and photographer Doug Perrine was hired to watch his back. [00:23.23]Doug: And then in one hand, [00:24.73]I'll have an aluminium camera housing, [00:26.14]and in another hand, [00:27.86]I'll have this hi-tech shark billy. [00:30.47]And then it's just a matter of giving them a little poke [00:33.98]to let them know that you're alive and capable of defending yourself. [00:38.43]Narration: The moment of truth had arrived. [00:41.56]Mark: Bird on the water, [00:43.81]80 yards to the right. [00:45.62]Narration: It was time to swim with tiger sharks. [00:55.28]Pulling the boat up at a respectful distance from the bird, [00:59.19]the divers' final approach was from underwater. [01:04.25]To stop any surprise attacks from a shark beneath them, [01:07.81]they hugged the sea bed. [01:12.79]But the bird was long gone. [01:14.88]They waited back-to-back for a tiger shark to show. [01:19.57]None did. But as they surfaced, a shark appeared [01:29.00]Mark: Right behind you! Shark right behind you! [01:31.65]Richard: It's a pretty intimidating sight to see a shark that big and that fat. [01:39.53]it's a huge girth, absolutely incredible girth. [01:41.95]