Independent Contra Costa County Guide — Not affiliated with Contra Costa County government.
Discover memorable things to do in Contra Costa County, California, from scenic parks and waterfront destinations to historic sites, family attractions, local museums, and easy day trips. Our guides cover practical planning information, seasonal activities, outdoor experiences, and places worth exploring across Concord, Walnut Creek, Richmond, Martinez, Antioch, San Ramon, and surrounding communities.
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Contra Loma Regional Park in Antioch remains one of eastern Contra Costa County’s most useful places for fishing, shoreline walking, picnicking, boating, wildlife watching, and short outdoor trips. The park surrounds an 80-acre reservoir and covers roughly 775 acres, giving visitors a combination of open
Contra Costa County offers a strong mix of paved regional trails, neighborhood connections, creek corridors, farmland views, and waterfront riding. Summer 2026 is an especially good time to explore by bike because the county’s free Summer Bike Challenge runs from June through August and encourages