Route in brief: Follow Lake Trail, which first follows a paved walking path adjoining the lake, then becomes a single track hiking trail until it reaches the south east corner of the lake (0.8 miles). Then climb up switchbacks to join Levee Trail and reach a gated entrance in the south east corner of the park (0.3 miles). Return by Levee Trail, turning left to talk around an unnmaed pond, then continue along North Arroyo Trail to reach a short bridge over Arroyo Del Valle (1.3 miles). Instead of crossing the bridge, turn right and return to the parking lot (0.3 miles).
From I-680 North, take exit 25 for Sunol Blvd / Castlewood Drive toward Pleasanton. Turn right onto Sunol Blvd and drive for 1.1 miles. Continue onto 1st St and drive 1.0 miles. Continue onto Stanley Blvd and drive for 1.3 miles to reach Shadow Cliffs.
Parking Fees: $6 per vehicle (last visited: Jun 2012)