Contra Costa County, California packs the East Bay into one varied hiking region, from the ridgelines of Las Trampas and Briones Peak to the marshy edge of Richmond Marina Bay. Walk the long Contra Costa Canal Trail, climb toward Wildcat Peak, or loop through Huckleberry and Paso Nogal Park. Between oak-studded hills, shoreline wind, and sweeping views toward Mount Diablo, the county gives every outing a strong sense of place.