Tilden Regional Park from Inspiration Point

Lake Anza at Tilden Regional Park


(when Lifeguards are on duty)
$4.00 age 16-61
$2.00 age 1-15
$2.00 seniors 62+ or disabled
FREE under 1 year
Note: fees collected in cash, checks, VISA, or Mastercard.


Weekends and holidays: Apr 29 - Sep 17
Weekdays: May 29 - Sep 8

11 am - 6 pm (exit water by 5:30 pm)


Lake Anza Road off of Central Park Drive, Berkeley, CA 94708


(888) 327-2757, option 3, ext. 4562

Venue Activities


Lake Anza at Tilden Park Water Quality Conditions

Tilden Lake Anza Swim Beach

Located in Tilden Regional Park, just over the hill from Berkeley, Lake Anza is a favorite getaway. Its sandy beach is open to the sun and sheltered from the wind, with lifeguards posted during the swim season (see the Lifeguard Service Schedule above).

On days when lifeguards are on duty, Lake Anza swim complex is closed from 9am-11am for maintenance and training purposes. Patrons who enter earlier than 9am must leave during this period and re-enter after 11am.

During the swim season when lifeguards are not on duty, swimming at your own risk is allowed within the roped-off area only unless otherwise posted. Swimming is prohibited from November through the beginning of swim season.

Fees and requirements: Group Swim Procedures

Payment by cash (no bills over $20), Visa or MasterCard.

Swim Capacity

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.

Swim Beach Water Quality Program

Lake Anza is tested for bacterial levels weekly from April to October. The map below indicates the sample sites on the beach. The East Bay Regional Park District works with the Alameda County Environmental Health Department in accordance with California Department of Public Health's Guidance for Fresh Water Beaches to determine water quality at Lake Anza. Our stop light sign is used to display the relative water quality from our latest bacteriological tests and blue-green algae conditions. Blue-green algae signage and designations are posted below our bacteriological result designations.

Water Quality Stop Light Designations:

Stoplight sign with water quality indicators

Please be advised there is always some level of risk when swimming in any water body. To have a fun and safe experience swimming in the parks, we encourage you to follow a few simple rules:

  • Keep water out of your mouth
  • After you leave the water, shower and towel dry as soon as possible 
  • Do not swim in the lake for 3 days after a rainstorm
  • Check posted signs for water quality information

For more information contact the East Bay Regional Park District Water Management Department at (510) 544-2328

Aerial photo of Lake Anza