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.
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.