Pass up the small parking lot on the left and keep driving where you'll see a huge parking lot on the right. There is a 3.00 fee to enter the trails + the volunteers will give you a map.
We hiked the Dragonfly Trail with a little dog. It's a beautiful hike with some shade, but mostly sunny. Bring water! Even at 70 it felt warm. It ended being almost 4 miles total with some elevation at the beginning. The huge cacti and scenery is breathtaking!! Added bonus, you can hear the stream running which made it so peaceful.