The 18-hole "Robert Trent Jones Course" at the Palmetto Dunes Resort Robert Trent Jones Course facility in Hilton Head Island, South Carolina features 6,710 yards of golf from the longest tees for a par of 72. The course rating is 72.6 and it has a slope rating of 133 on Bermuda grass. Designed by Robert Trent Jones, ASGCA, Roger Rulewich, ASGCA, the Robert Trent Jones Course opened in 1968.