Realization: groceries are heavy. I ended up with seven bags between meat, vegetables and fruit. I figure about 20 pounds worth. That's not really that much, unless you are carrying them for a couple of miles.
Second realization: I need to walk more. My back was killing me halfway through and I had to stop on one of the bridges to stretch and try and get the kinks out.
Third realization: despite being in the humid swampy part of the woods, there were no mosquitoes.
It was hot, and very humid, and I sweated a whole lot. And it was good.