The 18-hole "Dunes" course at the The Club At New Seabury facility in Mashpee, Massachusetts features 6,340 yards of golf from the longest tees for a par of 70. The course rating is 71.0 and it has a slope rating of 125 on Bent grass. Designed by William F. Mitchell, ASGCA/Marvin Armstrong, the Dunes golf course opened in 1962.