Dunes of snow-white sand give a distinctive look to the barrier islands of the Gulf Islands National Seashore. Held together by a fragile network of stems and roots, the dunes are composed of fine quartz sand that originated in distant mountains.

Gulf Islands National Seashore:
Parking Lot 9
Gulf Islands National Seashore: Parking Lot 9
-
The national seashore maintains boardwalks and parking bays along Via de Luna Drive on Santa Rosa Island
-
The boardwalk aids in the formation of its own dune alongside of the walkway.
-
The boardwalk ends in a larger staging area across the dunes.
-
-