For years I have managed crews and workers who have to work off road, in swamps, marshes and all sorts of stuff, without the protection of vehicles. I have also been on collecting excursions for professors in college for smakes in the swamps. I was always real good about seeing everything and being careful around poisonous snakes and have HAD to kill very, very few of them. When you are working, and you might as well count hunting in the swamps as work, you need to be wearing snake boots. If you are like me, you don't have the luxury of being able to tippy-toe around in the woods, especially while recovering an animal.
All snake boots and gaiters are not created equal. Get the good ones, the name brand ones. Don't have to be the handmade ones, their great if you can afford them. We go through up to three pair of Rocky's a year for each person. So far they seem to be a good value even though we go through a bunck of them. They don't wear out, they leak and when your are standing up to your ankles in water a good portion of the time, dry is good.
Gaiters sound like a good option but they ride up and stop protection for the back of the ankle and the foot. I wouldn't trust them in the swamps.
BTW, consumer rubber boots, hip waders, waders DO NOT stop a big canebreak, Timber Rattler, or ever a copperhead. Commercial grade, industrial grade boot MAY. I know I've been through it.
Also, I have "running back calves" and one of my guys wears a knee brace and the only thing that fits both of us is the lace-up style, neither of us can get the slip-on to work.
If you are coming South on a trip, a $130 pair boots is cheap - you'll spend more money than that on gas. Peace of mind is priceless and you might be needing them more than just once
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charles