I've done this trail twice in the last couple of weeks (started off on gibson and some neighborhood street the first time). The first time I did this trail, I wasn't prepared at all and decided to turn back after a mile and a half because the sun was beating down on me and the temps started reaching into the 106 107 range..
This morning, I started the trail off at the hidden falls park. The trail itself is very easy and as someone else said, there are tons of branch offs from the original trail itself. The one thing I do recommend is carry at least 2 liters of water with you, and PLEASE wear appropriate shoes as there are a lot of sections with slippery gravel/rock. There are steap parts to this trail both ways, some parts for me were hands on knees. There is no shade on the trail but morning was cloudy, cool, and there was a nice refreshing breeze up there, I still needed 2 liters of water. I also saw a bunny on the trail... pretty cute c:
All in all, really easy trail. Something to get your heart rate up and its the perfect excuse to get out of the house and experience nature!