This loop trail is ideal if you want a relatively quick hike in West Dublin. From the back of the California Highlands condo complex, the loop takes about 45 minutes to complete. At the top of the hill, you are rewarded with views overlooking the Tri-Valley. The trail is not super difficult, but there are definitely up hill portions to get your heart rate up. I have seen Turkeys, Coyotes, and all sorts of birds and ground critters along the hillsides.