chris fallows is a shark tourism operator.hink we can really relate to the situation of the seals. they're at home, sitting in the sun, happy and safe and having a wonderful time, and everything's great. but when they get hungry, they've got to go out into the street. >> correct. >> and in the street, there are a lot of rough characters. >> yeah, it's a catch-22. unfortunately for the seals, they need to go out and feed, and at this island, they've got a very good chance of being eaten by a white shark. >> after watching a shark have a meal, a lot of tourists do the same, go back to shore. but some stick around, tempted to leave our world, if ever so briefly, and go down to theirs underwater. it's the thing to do these days for seekers of adventure and adrenaline. you do it, of course, from the safety of a cage. safety? this happened to tourists not far from where we were: a shark actually got into the cage. if he hadn't lost his bearings and turned upside down, the tourists would have been toast. but chris fallows assured us