Diablo Hills Golf Course is a 9-hole public golf course in Walnut Creek, California, built in 1968 and designed by Robert Muir Graves. It sits in the $$ (moderate) price range for golf in California. The course is open all year. Tee times can be booked 7 days in advance. Guests are welcome.
Details like fees and seasons change, so call the course before you head out.