worried about snakes, you should be wearing waders, the snake bite wont penetrate through to your legs.
id be more concerned from the brown recluse spider.. they are everywhere. i got bit last year and i know peep that got bit this year.. snakes you see, the spider you wont.
i know its hot out there, but if you wear protective clothing, you got a better chance of not being bit.
Brown recluse is the worst! Definitely keeping my hands out of dark stump holes.