Sheila,
I visited the Okefenokee Swamp back in 2008. It was awesome! I'd love to go again but with more time to spare. I was on a quick day tour. I walked that boardwalk that goes through the swamp. It was so hot and humid but I did see lots of caterpillars on the sweetbay growing wild there.
Also saw gobs of huge Cicada Killer wasps at some old house there - can't remember who's place it was - but it was on part of the tour. Lots of those insect killer pitcher plants growing wild along the ditches too...saw several alligators in them too!