There's so much to do in this vast and tranquil state park. If done with hiking, why don't you go horseback riding, explore various historical sites and museum, or rest in one of many picnic areas. The park also organizes guided tours.
Daily: 8 am - sunset
Summit Visitor Center:
Daily: 10 am - 4 pm
Wikipedia https://en.wikipedia.org/wiki/Mount_Diablo
Official Website https://www.parks.ca.gov/?page_id=517
Facebook https://www.facebook.com/CaliforniaStateParks
Coordinates 37°52'15.787" N -121°55'10.812" E
