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To reach Park Delta Bay by road:
From the San Francisco Bay Area, take Highway 4 to Antioch, North on Highway 160 across the Antioch Bridge, East on Highway 12 and right turn onto Jackson Slough Rd. Turn left onto W Brannan Island Rd.
From Sacramento, take I-5 to Hwy 12, W 12.8 mi on Hwy 12 to Jackson Slough Rd, S 1.6 mi to Brannan Island Rd, E 1.8 mi (L)