To Hiddenbrooke Summit (2.3 miles): Walk 0.5 miles along a bike trail that parallels Hiddenbrooke Parkway to reach the park entrance for Hiddenbrooke Open Space Preserve on the right. Enter the preserve and follow Hiddenbrooke Trail for 0.9 miles to reach a sign that asks you to turn left instead of continuing along an unmaintained trail straight ahead. After 0.3 miles, you reach a junction. Turn right at the junction. Walk 0.3 miles to reach a junction with Summit Trail. Turn right onto Summit Trail, walk 0.3 miles to the summit.
To Bennington Drive shopping plaza (1.6 miles): From the summit, follow Summit Trail for 0.3 miles to reach an intersection with Hiddenbrooke Trail. Turn left. In 0.3 miles, you reach an unmarked intersection with Hiddenbrooke Connector Trail. Turn right onto Hiddenbrooke Connector Trail and start descending into the valley in front of you. In 0.2 miles, there is an unmarked junction. Turn right. Soon after, there is a metal gate which may be passed through. After walking for 0.8 miles along a trail with many gentle switchbacks to emerge at the intersection of Bennington Drive and Hiddenbrooke Parkway.
To McGary Road Parking Lot (1.3 miles): Walk all along Hiddenbrooke Parkway for 1.3 miles to reach the parking lot.
Along I-80 East, take exit 36 for American Canyon Road. Turn right at the exit, then take an immediate right onto McGary Road. There is space for parking several cars on the right (zoom into Google Maps to see its location).