Within Diablo Foothills Regional Park is the Castle Rock Recreation Area which is located in a scenic canyon along Pine Creek.
Wildcat Canyon Regional Park encompasses 2,789 acres along the Wildcat Creek watershed and the surrounding hills and ridges.
The Park District continually works to remove bootleg trails and restore the natural beauty of the hillside near the Mission Peak summit, where it’s been eroded over the years due to hikers leaving the designated trail.
Contra Loma's 775 acres include an 80-acre reservoir for year-round fishing and a lifeguarded swim lagoon for summertime swimming.