Sherman Island (California)

Access to the island is provided by boat and from California State Route 160, which uses the Antioch Bridge to link Sherman Island with the city of Antioch to the south, and the Three Mile Slough Bridge to link Sherman Island with Brannan Island State Recreation Area to the north. In either case, turn south onto Sherman Island Road and continue driving to Mayberry Slough. == Wildlife area ==

The southwest of the island, known as Lower Sherman Island Wildlife Area, contains about and features a large marshy area and Sherman Lake where there is fish and other water sports, particularly windsurfing and kiteboarding. This area was designated in 1976 as a wildlife habitat by the California Fish & Game Commission. The Delta Flood Protection Act, enacted after serious flooding occurred in 1986, included flood control improvement projects for Sherman Island, as well as eight other islands. Senate Bill 1065, enacted in 1991, was intended to assure that these islands did not experience any net loss of habitat. == Hours and fees ==

In 2019, park hours were established as sunrise to sunset year-round. Self-payment is required when no fee collector is present. Camping Overnight camping is allowed with the following restrictions: • Maximum stay is 14 nights, after which a 30-day break is required. • Camping with self-contained vehicles only (RV's, trailers and vans) • Camping is not permitted in the boat launch parking lot • There is a fee of $35 for nightly camping Entrance fees As of 2026, the entrance fees are: • $7 per Vehicle • $13 per Vehicle with Trailer/Oversized Vehicle over • $28 per Bus == Notes ==