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
Swimming is CLOSED for the season
1200 Frederickson Lane, Antioch, CA 94509
(888) 327-2757 option 3, ext. 4518

Venue Activities


VERY HIGH Fire Danger in Effect for Parks in NE REGION on SATURDAY, July 2. Follow All Restrictions Below.

  • No campfires outside of designated day-use picnic areas, campgrounds, or developed recreational areas.
  • Barbeques permitted only in designated day-use picnic areas, campgrounds, or developed recreational areas.
    Gas-fueled stoves are permitted in all designated areas.
  • No off-road driving. Drive only on designated roadways. No driving or parking on dry grass; heat from vehicle's undercarriage can start a fire.
  • Secure all tow chains; a dragging chain throws sparks that can start fires.
  • Parks in North East Region || See more info: Fire Danger Levels & Restrictions

Area Closure Notice - Contra Loma Swim Lagoon / Alternate Swim Access

  • Contra Loma Swim Lagoon closed for required maintenance and safety repairs.
  • Alternate Swim Access – The Park District has partnered with the Ambrose Recreation and Park District to provide alternative swim access and programing at Ambrose Aquatic Center in Pittsburg from June 20, 2022, to September 5, 2022. Ambrose Aquatic Center will open seven days a week during the 2022 swim season.
  • Updated on 6/15/2022

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.