Dumbarton Quarry/ Coyote Hills
This route is fully exposed, but usually gets nice breezes from the bay. The hike has firm terrain with a combination of paved, packed dirt and gravel surfaces and an average trail width of 4 feet and above. For a gentler trail grade follow the lower Meadowlark trail in each direction.
Start your route on the paved connector Serpentine Trail located in the campground behind the Patterson picnic area. Go right, past the picnic site, and turn left onto the paved Greenstone Trail which connects you to Coyote Hills. At the end of this trail go through the gate and make a left back onto the Serpentine Trail. In a little over a quarter-mile, there is an incline; proceed to the right towards the upper and lower Meadowlark trails. Take the lower or right-hand trail for the most accessible route. This trail is very bumpy and wheelchair riders can avoid some of the cross slope by straddling the raised middle sections. The Upper Meadowlark Trail is very steep but can be chosen as an alternate route since it goes to the same place. At the end of Meadowlark, continue on the packed gravel Apay Way Trail for a few yards and take a right onto the paved Bayview Trail. After about a mile on the Bayview trail, you will reach a bench on your right. Turn around here to complete the round trip or continue further to make your hike a little longer. Return to the campground by following the same route you just traveled
Located within Coyote Hills Regional Park next to the eastern shore of San Francisco Bay in Fremont, Dumbarton Quarry Campground on the Bay is the District’s first full-service campground, complete with 63 campsites, a camp store, an amphi-theater, a playground, Wi-Fi, and picnic areas. Coyote Hills offers diverse lessons in history and many activities. At the Visitor Center, you can learn about Ohlone history, settlers and ranching, salt production, bio-sonar research, and more. Naturalist-led walks, tours of the Tuibun Ohlone Village, and visits to the Nectar Garden are also available. Other park features include picnic areas, Alameda Creek Trail, the marsh boardwalk, the nearby wildlife refuge, and salt evaporation ponds.
From I-880, take CA-84 to Paseo Padre North, left on Quarry Road, right into the Campground.