It's not, strictly speaking, a scenic wonderland. But this is North Texas, so you probably already knew that. If you want your nature tamed, try the Dallas Arboretum. L.B. Houston offers a narrow dirt track winding roughly four miles through wooded Trinity River bottomland. What will you see? The backsides of a bunch of trees, the river, brush and the occasional squirrel, turtle or water moccasin. You know, nature. Don't worry about the snakes, though. Just keep your eyes open for the bicyclists, because this trail is popular with what we laughingly call "mountain" bike riders. In North Texas. Snort.