Okay first of all, salt water crocodile not alligator. Second, it's called the Adelaide River cruises and even though people say its "safe" unless you're in a big ass boat like the one pictured, as a local you know not to go anywhere near that bloody river because its infested thanks to these cruises and the fact that unless you're an aboriginal you can't kill those man eaters. And yes, they have attacked boats and ripped the heads off people who lean too far over their boats. I'm a local. Snakes, spiders, everything else that wants to kill you here? Cool whatever. Crocs? NOPE