Great, leisurely hike with young children. Gather acorns along the way and mash them up with a rock at the big stone they have that the Native Americans used. My kids loooooved this. See photos. Look for the buckeye seeds and acorns. My 6 year old was thrilled. Really interesting signs that educate about the plants and the brilliant methods employed by the native Americans to use the plants. Watch out for poison oak. Also, half way through the trail you have to walk for a few hundred yards on the Mesa trail to continue on to the buckeye trail.
We took our three kids on a hike weaving through the buckeye nature trail to the waterfall. Things are dry right now because of the drought and therefore, no waterfall. However, the dry basin under the area where the water usually falls was very interesting for my children. The nature trail was interesting and gave really cool facts about Native American acorn and buckeye uses. Lots of people with dogs. Great place to hike with dogs and kids. Getting to the waterfall is QUiCK! Not 3 miles. However, you can keep hiking up beyond it.