Adobe Loop is a short hike right in Chino Hills that offers beautiful views of the city's rolling hills.
The best place to park for this hike is at Hunter's Hill park. From there, the trailhead is located on Natalie Road just South of the park. There is a large sign marking the start of the trail, but it does not give a name for either the trail head or the trail itself. For reference, it is the Butterfield trail head and the Adobe Loop trail.
Once on the trail, it immediately forks into two trails, with one heading left and the other heading right. I would recommend heading left, because to the right the trail branches off once again.
After walking a short distance, the loop will again branch off to either take you left and out to the same street (Natalie Road) but a different trail head, or to simply continue straight and finish the loop. Keeping straight will allow you to finish where you started. The path is fairly flat, but at times can be steep and has been damaged somewhat due to heavy rainfall. One section had deep grooves cut into the ground by descending rain. However, the path is wide enough that these sections can easily be avoided.
Also, dogs are allowed on a leash.