I went back there yesterday with a group of rangers from the park. They capture them and release to areas in the park off limits to visitors. But, wily old boy he is, he was long gone. We see banded water snakes all the time, black racers, garter snakes, kings, etc. but it is a rare moment when we do come across one like this guy. I wear LL Bean high top boots most days and I know I am going to be near tall grass areas, I have a pair of rattlesnakes chaps as well - just so damn hot to hang on you when the temps are in the high 90's and the humidity the same...still better than a moccasin, copperhead, pigmy or diamondback rattler, canebrakes, or corals biting you as a way to make your acquaintance.
It was a 400mm lens and I was a good 8-10 feet from him when I made the shot. I made the shot after making a hasty retreat. Moccasins are nasty and given the instigation, will chase you, a thought I don't relish at all. It was only after allowing him to retreat into the palmettos that I made the shot. Safety first. Be careful out there!