The 18-hole "Oak Glen" course at the Singing Hills Golf Resort At Sycuan facility in El Cajon, California features 6,597 yards of golf from the longest tees for a par of 72. The course rating is 71.3 and it has a slope rating of 122 on Bermuda grass. Designed by Ted Robinson, ASGCA/Dave Fleming, the Oak Glen golf course opened in 1956.