From Holbrook Drive parking lot, go through they play areas to reach the trail head for Sycamore Valley Open Space Preserve. Then follow Sand Hill Trail (0.7 miles) → left on Short Ridge Trail (0.5 miles). At the junction with Shady Slope Trail, continue along Short Ridge Trail (0.3 miles) to reach a dead end. Retrace your steps along Short Ridge Trail (0.3 miles), turn right on Shady Slope Trail (0.6 miles) to reach the parking lot on Sherburne Hills Road. Walk 0.2 miles through playgrounds to reach the parking lot on Holbrook Drive.
From I-680 in San Ramon, take exit 38 for Sycamore Valley Road. Turn right onto Sycamore Valley Road East. After 1.4 miles, it becomes Camino Tassajara. Continue on Camino Tassajara for 1.5 miles. Turn left on Holbrook Drive. There is a large parking lot for Sycamore Valley Park. Walking through the tennis courts will take you to trail heads for Sycamore Valley Open Space Preserve.
Parking Fees: None (last visited: May 2012)
Capacity: Over 30 cars my be parked here. There is additional parking on Sherburne Hills Road (see trail map for Sycamore Valley Open Space Preserve for its location).