The 9-hole "Dunes Back Nine" course at the The Dunes Golf & Tennis Club facility in Sanibel, Florida features 5,578 yards of golf from the longest tees for a par of 70. The course rating is 68.0 and it has a slope rating of 123 on Bermuda grass. Designed by Mark McCumber, ASGCA, the Dunes Back Nine golf course opened in 2024.