@DavidBrown For gators, I would go with the zoo in the photo, as 'Natchitoches' was so rundown that it truly resembled a swamp in Louisiana. For crocs, I would go with Crocosaurus Cove in Darwin, Northern Territory, which I visited in 2007. Since then, the zoo added an attraction called Cage of Death that their website calls "Australia's only crocodile dive".