This hike is a hidden gem in Austin. We got there about 10:45 and there was only 1 other car in the parking lot. We did all of the different trails. Rimrock, Indian Grass, Shin Oak, Pond and Prarie and Creek trail. The best one is Indian Grass. It is an up and down and then across a pretty open hilly field. I loved it. Make sure you add to the rock cairns.
When we left there were more cars in the parking lot, but still very tranquil. This one would be extremely hot in the summer so if you go in summer, be careful.