From Concord/Walnut Creek/Antioch /Pittsburg area:
From 680 North: Take the Pacheco Blvd/Arthur Rd exit off Hwy 680. At the first light turn right onto Arthur Road between the Shell and Union 76 gas station.
From Benicia Area:
From 680 South: Take the Pacheco Blvd/Arthur Rd. exit off Hwy
680 South. At the bottom of the ramp turn left onto Arthur Road.
From Arthur Road: Continue on Arthur Road under the freeway and around the bend to the left. At the chain link fence, turn left onto the Plant Road, continuing along the marsh, through the tunnel and up a small hill. Take the right fork to the parking area. Visitors please sign in at the Office.