There are 5 trails of varying difficulty, they do crossover occasionally, so you can switch halfway through if you like. Decent maps are available in the Lake Store. There are some fun, fast drops and technical climbs. Bottoms of the mini canyons tend to hold water, even months after a rain (it is by a lake after all). There are a few sandy spots, but not bad. I prefer the Orange trail and the Blue is great for a longer, more technical ride.
My only complaint is that the trails are shared with Equestrians, so there is one sections where the trails all come back together near the trailhead which is basically a dirt road through a prairie and if it's rained recently, the horse tracks will beat you to death. Hang to the edges and you can ride it out. ;)