A 550-foot pier provides access to great fishing in the San Joaquin River at Antioch/Oakley Regional Shoreline, located just upstream from Highway 160's Nejedly Bridge in Antioch. Fishing, picnicking and kite flying are all favorite pastimes. Fishing from the pier is allowed 24 hours daily.

Contra Loma's 775 acres include an 80-acre reservoir for year-round fishing and a lifeguarded swim lagoon for summertime swimming. Enjoy these attractions along with year-round hiking, biking, and nature study at this Contra Costa County oasis.

Antioch is the second-largest city in Contra Costa County, California. Located in the East Bay region of the San Francisco Bay Area along the San Joaquin–Sacramento River Delta. The city's population was 111,502 in 2019.

Contra Loma Regional Park is a 780 acre regional park in Contra Costa County, California. It is part of the East Bay Regional Parks system.

Black Diamond was California's largest coal mining district and a major source of commercial sandstone. Today's park is full of trails, nature, and history.

The Corteva Wetlands Preserve is a nature preserve located in Antioch, California. It's a 50-acre wetland area that is home to a variety of plant and animal species. The preserve is managed by the East Bay Regional Park District and is open to the public for hiking, birdwatching, and nature observation.