Take the FIRST left off of Pleasant Valley to Onion Creek Drive and take it to where it ends that is the quickest way there. There is NO signage anywhere for this park but the trail is easy to find. Fairly straight as mentioned. Austin parks lists additional side trails (marked on this map as "gravel pit") which was just full of old pipes and not worth the effort. Coming back up we took the side trails to the right and there is a HUGE tree (takes 3 people to get your arms around it. You can wade across the creek on the other side trail but not sure what is over there. Main trail doesnt go near the creek but the trees are nice and worthy of a 3 for this trail.