Contra Loma Reservoir Access provides boat launch facilities at Contra Loma Regional Park in Antioch, with a $5 fee for trailered boats and $3 for cartop/inflatable launches.

The park offers multiple access points including a main boat launch, ADA-accessible fishing dock, and swim lagoon area, with mandatory watercraft inspections required to prevent invasive mussel introduction.

Amenities include parking ($5/vehicle), restrooms, drinking water, and picnic areas, with year-round access during seasonal hours (7am-5:30pm in winter, extending to 8:30pm in summer).