2021 Swim Season Notice
Select swim facilities are scheduled to open Memorial Day weekend with capacity limited due to COVID-19 and available staffing. Reservations are required for every person entering the swim area, including infants. Pre-registered visitors will be issued an all-day swim pass valid from 11am-6pm. Reservations are available two weeks in advance for any given date. • Register online or by phone Monday-Friday from 9am-3pm at (888) 327-2757, option 2.
• Visit swim facilities for information on Fees and the Lifeguard Service Schedule. 
Water Quality Notice
Information concerning cyanobacteria (blue-green algae) and other water-quality issues.


Swim Facilities 
Information on fees, swim regulations, lifeguard service schedule etc. 

Browse aquatic programs or register online 

Swim Beach Water Quality 
Information regarding our swim water quality monitoring program and water testing. 

Become a Lifeguard 
Learn how you can become a lifeguard

Water Safety
Lists of resources on CPR training, water safety and sun safety 

The official website of the United States Lifesaving Association

Open Swim Facilities

Select swim facilities will open Memorial Day weekend with limited capacity and by pre-registration only. Swim hours for most facilities are 11am-6pm daily. Every person must be registered in order to enter the swim area, including infants.

  • No drop-ins and no paying at the park for extra people.
  • Maximum of 6 people can register on one transaction.
  • Everyone who registers together must enter the swim area together.
Swim Facility City Link to Pre-register
Diablo Foothills/Castle Rock Regional Recreation Area Walnut Creek Reserve swimming at Diablo Foothills/Castle Rock
Contra Loma Regional Park Antioch Reserve swimming at Contra Loma
Cull Canyon Regional Recreation Area Castro Valley Reserve swimming at Cull Canyon
Don Castro Regional Recreation Area Hayward Reserve swimming at Don Castro
Roberts Regional Recreation Area Oakland Reserve swimming at Roberts

Open-water swimming at Crown Memorial State Beach and Miller/Knox Regional Shoreline is not restricted. No lifeguards are provided at shoreline beaches; swim at your own risk.

Shadow Cliffs and Quarry Lakes will be closed for the 2021 season due to low water levels.

Del Valle, Lake Anza, and Temescal are currently closed due to unsafe cyanobacteria (blue-green algae) levels. Water quality is evaluated regularly to determine if safe levels will permit reopening.

The East Bay Regional Park District swim facilities include six open-water lakefront beaches, three chlorinated lagoons, two pools, and two bay shoreline beaches. Before visiting any swim facilities, review the official swimming Visitor Rules and Regulations. [PDF]

Park Rules and Regulations

Parks with Reservable Swimming Facilities

Swimming Lessons

For more information about swimming lessons, junior lifeguards and other aquatic programs please visit the East Bay Lifeguards website.


Beach wheelchairs are available at Contra Loma in Antioch, Del Valle in Livermore, Don Castro in Castro Valley, Quarry Lakes in Fremont, Shadow Cliffs in Pleasanton, Lake Temescal in Oakland and Robert W. Crown Memorial State Beach in Alameda and Tilden's Lake Anza in Berkeley. To arrange for use of a chair, call the park office prior to visiting. The outdoor pool at Roberts Regional Recreation Area in the Oakland hills and Castle Rock Recreation Area in Walnut Creek is heated and is disabled accessible.

If you are interested in Adaptive Swim Lessons, please call (510) 690-6625 for more information.

No lifeguard service is provided at bay beaches.

Swimming at your own risk is allowed in designated areas and when lifeguards are off-duty at some parks. These include Del ValleShadow CliffsLake AnzaQuarry Lakes, and Lake Temescal. Swim lessons for children are offered at Contra Loma and Roberts Pool. A Junior Lifeguard program is also offered at several lakes. For information, browse our Aquatic Programs at http://www.EBParks.org/Register or call 1-888-EBPARKS (1-888-327-2757).

Swimmers must follow all Posted Regulations [PDF]

Alcohol, glass containers, fires, and dogs are prohibited at ALL swimming areas.

Special Safety Notices

Children 12 years old and under are not permitted in the swimming area unless accompanied by a responsible, actively supervising, individual 16 years old or older. Water Safety Information.

Swimmers at Contra LomaCull CanyonRoberts PoolCastle Rock pool, Don CastroLake TemescalLake Anza, and Quarry Lakes who wish to enter chest deep water, are required to wear an identifying wrist band, issued by the lifeguards. This band indicates you have passed a swim test.

Swim diapers are required at chlorinated swim facilities: Contra Loma, Cull Canyon, Castle Rock, Don Castro, Roberts.