The hike was incredible! Totally beautiful, shady most of the time. Colorful leaves everywhere and crossing a creek from time to time. A couple campgrounds along the way. Every mile had something great to experience.
I would suggest taking a look at a map before you go. You hike about a mile down to a bridge and follow the trail on the left. After a few miles, you go through Hoegee's campground, cross a creek, and then come to a junction where you stay to the right. You will be going clockwise, taking Upper Winter Creek Trail, Mt. Zion Trail, Sturtevant Trail, and the Gabrielino Trail. Here is a map of the Chantry Flats area: http://tchester.org/sgm/trails/chantry_flat.html
If I remember right, it took us about 4.5 hours.