1. Castle RockMount Diablo Scenic Blvd, Mt. Diablo State Park, Danville, CA 94102
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The area has picnic tables with beautiful views. The Mount Diablo Visitor Center is open daily from 10am to 4pm. (from Sunset) More Details for Castle RockHours: Daily 8am-Sunset Admission: Parking $6 Website: Visit the Castle Rock website » Type: Day Trips, Outdoor Activities |
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