Contra Loma Regional Park

Contra Loma Swim Lagoon


$3.00 age 16-61
$2.00 age 1-15
$2.00 seniors 62+ or disabled
FREE under 1 year
$5 Parking Fee


CLOSED Summer 2023 for facility repairs


1200 Frederickson Lane, Antioch, CA 94509


(888) 327-2757 option 3, ext. 4518

Venue Activities


Swim Lagoon Closed

Contra Loma Swim Lagoon is CLOSED for the 2023 swim season due to required maintenance and safety repairs. The District is evaluating potential structural repairs and changes to the lagoon, including removing the sand entry, bringing the facility up to code, and cost estimates.

The Park District has partnered with the Ambrose Parks and Recreation District to provide alternative swim access and programs at Ambrose Aquatic Center in Pittsburg. Visit for more information.

Located in Contra Loma Regional Park, the lake's chlorinated swim lagoon has a sandy beach with restrooms, a concession stand, and an accessible lift into the swim lagoon. A beach wheelchair is available free of charge on a first-come, first-served basis. Shady picnic areas on a green lawn are accessible to people with disabilities. Visit Park Accessibility on Contra Loma’s park page for more information.

Alcohol is not permitted anywhere in the park. Swimming is permitted in the lagoon only, in the summer when lifeguards are on duty. There is a beach access fee. Food concessionaire has the same hours as swim hours. Swim lessons and the Jr. Lifeguard program is held at the lagoon in the summertime.

Swim Lesson Information

Swim Capacity

Due to the popularity of swimming at Contra Loma, the swim facility reaches capacity very early on weekends and Holidays. Once the swim facility capacity is reached, there will be no new entries allowed for the remainder of the day. Please take this into consideration when you are planning your visit.