East Bay Regional Parks

The East Bay Regional Park District is a special district operating in Alameda County and Contra Costa County, California, within the East Bay area of the San Francisco Bay Area. It maintains and operates a system of regional parks which is the largest urban regional park district in the United States.

73 parks. 125,000 acres. 1,250 miles of trails. 55 miles of shoreline. Serving 2.8 million in Alameda and Contra Costa counties.

Contact Public Affairs:


  • 17930 Lake Chabot Rd
  • Castro Valley, CA 94546
  • Phone: (510) 881-1833
  • Hours: Open 24 Hours