Shadow Cliffs Swimming

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Located in the Shadow Cliffs Regional Recreation Area, the swimming beach has a bathhouse and refreshment stand, open on weekends in spring and fall, and daily during summer months. Lifeguards are on duty during the summer months, but swimming is allowed throughout the year in the designated area, at the swimmer's own risk. For lifeguard service schedule, check hours above.

Beach wheelchairs, intended to provide a means for wheelchair users to travel across the beach, are available free of charge on a first-come, first-served basis. Pets and glass containers are not allowed on the sand portion of the swim area. Swimming is not allowed in the arroyo areas.

Swim Beach Water Quality Program

Shadow Cliffs Beach is tested for bacterial levels weekly from April to October and twice a month from November to March. The map below shows the two 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 Shadow Cliffs Beach. Our stop light sign is used to display the relative water quality from our latest bacteriological tests and blue-green algae conditions.

Water Quality Stop Light Designations:

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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

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