Castro Valley, California, is centrally located between San Francisco, Oakland, San Leandro, Hayward and other East Bay cities which provides convenience for business trips and sightseeing and makes it a great location for tourists. During your stay in Castro Valley, be sure to visit Anthony Chabot Regional Park. Anthony Chabot Regional Park Anthony Chabot Regional Park is a beautiful, 3,314-acre year-round public campground with 70 miles of hiking, bicycling, and horse-riding trails, over 70 ...