Bedrock mortars used by Native Americans for pounding acorns that were found in the area are reminders of Sunol's first inhabitants.
Next to the commercial bustle of Oakland International Airport is a 748-acre park leased from the Port of Oakland, protecting the remainder of a once-extensive marshland at San Leandro Bay.
Diablo Foothills is an imposing gateway to the beautiful parklands of Mt Diablo State Park and Walnut Creek Open Space.
Kennedy Grove Regional Recreation Area offers a comfortable setting for either small or large group picnics (some by reservation) or informal gatherings of friends and families.
Lake Chabot Reservoir was built in 1874-75 as a primary source of water for the East Bay.
Within Diablo Foothills Regional Park is the Castle Rock Recreation Area which is located in a scenic canyon along Pine Creek.
Contra Loma's 775 acres include an 80-acre reservoir for year-round fishing and a lifeguarded swim lagoon for summertime swimming.
On December 6, 2016, The Park District Board of Directors renamed Martinez Regional Shoreline to Ted and Kathy Radke Martinez Regional Shoreline in honor of Ted Radke and his wife, Kathy.
A beautifully situated shoreline picnic area, a secluded cove with swimming beach, a fishing pier at a historic site a hilltop with excellent panoramic views of the North Bay Area and a model railroad museum - all these attractions are part of 307-acre Miller/Knox Regional Shoreline in Richmond.
This 277-acre oak/bay parkland preserves the habitat of the extremely rare Alameda manzanita as well as other indigenous plant and animal species.