Upper Bull Creek Greenbelt (6958 Spicewood Springs Road) offers about 6 miles of unpaved trail that’s very scenic. With the rains we’ve gotten lately, the creek is really flowing and it’s such an enjoyable sound. The foliage along the trail is rather overgrown right now so you’ll want to exercise some extra caution. It’s pretty secluded out there on the steamy weekday I visited; just a few other visitors were enjoying the waterway. It’s very near Lower Bull Creek Greenbelt, Bull Creek Preserve, Bull Creek District Park, and St. Edward’s Greenbelt ; there’s so much in this area to explore in what some folks collectively refer to as The Greenbelt. I saw a peacock along the roadway and a fat Texas Spiny Lizard on the trial.