Brought my "60 hikes book" but they offer a better map at the trailhead for free. Took the HIllview trail which gets VERY steep along the right/west side of park. Took the Red Oak which I didn't enjoy as much but Hillview was great. Tower offered a nice view. Came back on Yucca to the east til it hit Hillview. Lots of people for a Wednesday morning and at least a dozen large planes flew over. VERY well marked at every intersection so don't worry about getting lost. I'd love to hike this more if I didn't live in Austin.