Don't worry about Crocodiles in the swamps, there aren't any to my knowledge! Now alligators are a different storyand they may well may get you but it's likely that the mosquitoes will eat you alive first so I shouldn't worry on that score!
At least you are going to NAC so it's the wildlife that is your only worry and not the flying school proprietors as is the case of several other schools that I could name!