There are trails, of course. Since the park bottomlands flood several times per year, a few of the trails are constructed of elevated boardwalks. These only extend a relatively short distance into the forest. Beyond those, the only man-made things you will encounter other than the trails are a few footbridges that cross various streams and guts.
The ENTS group assembles at the visitors center on a cold, bright, cloudless Saturday morning. (I should have brought a scarf!)