There are a few water crossings which are welcome in the summer. The soil is sandy which makes for fast draining after a rain. There are several waterfalls, be sure to check out the one at the start of the blue loop, its about a mile in on the right. Also there is alot of horse use on these trails. I always see horses on the trail.
Most horses are skiddish around a bicycle.
When I encounter a horse I immediately get off my bike and take my helmet off. Several times I have had to hide my bike behind a tree. It makes for good relations with the horse riders. They make awesome jumps. They are shapes so that you don't get airborne unless you really want.