Some questions have arisen about the route for lap 2. It will be six miles long, covering open field and dense woods. You should keep your eyes constantly peeled for trees marked with ORANGE (not red) painting. If another color is marked alongside orange, you're still on the orange trail. If you're crossing a road or dirt path with tire treads on it, don't go on that road - go across. There will be two major intersections with different trail colors offered to you. You want to go on the (you guessed it) orange trails. In fact these two major intersections will require you to turn right if that helps.
Having a hydration source on you at all times during this run is mandatory. You must carry at least two bottles of water with you, or you could use the highly recommended camelbak to keep you hydrated. There will be one (maybe two) water stations along the course. Your feet will probably be wet at the beginning of the course, so don't wear shoes that will give you bad blisters. You must also run in eyesight of another person. This is the only time when you will be far separated from the cadre, so if you collapse from the heat (this has happened once before) you will not be noticed right away. Runners in the front of the pack need not worry about being in eyesight of each other as much as those in the back. After all, if you're in the lead and you black out somebody will eventually catch up to you and be able to call for help.
Here is a picture of the color orange, marked on a post. Trees will also bear this particular hue as well.