I stumbled onto this one while riding Munson Hills. There is a West and East Connector trail that connects to Twilight. To me, Twilight is nicer than Munson Hills. It's fairly much a beginner trail in that there is no real technical stuff, but it's 9.5 miles long which is a good workout. This trail goes behind the burms of the Crawfordville shooting range. So they are actually shooting in your direction. Gotta put lots of faith in those who engineered that place, huh?
Located on US 319 South (Crawfordville Highway). It's in Wakulla State Forest right beside the St Mark's paved bike trail. There are two ways to get to it. Either use the THD of Munson Hills and go left. You'll see the East Connector sign which will take you to Twilight. The main trailhead is located behind the ball parks a couple of miles down the St. Marks paved Bike trail.
http://www.singletracks.com/item.php?c=1&i=2717