where does the sand in destin come from
Destin, Florida "Crab Island," was actually two islands made from sand that the Army Corps of Engineers dredged up from the East Pass. These islands were large enough to inhabit sea grass, small shrubs and nesting seabirds. It has been reduced to a significant sandbar, which appears only when the tide is out. It has become a popular anchorage[15] in the area. The entrance to Destin Harbor, a lagoon between the beaches and the main body of the western portion of the peninsula, is located just north of the East Pass jetty. The lagoon is formed by a sand spit named Holiday Isle; many condominiums have been built along the harbor since the 1970s.[12]
Siesta Beach Unlike beaches elsewhere that are made up mostly of pulverized coral, Siesta Beach's sand is 99% quartz, most of which comes from the Appalachian Mountains.[3] Even on the hottest days, the sand is so reflective that it feels cool underfoot. It's estimated that the sand on Siesta Beach and Crescent Beach on Siesta Key is millions of years old, having its origin in the Appalachians and flowing down the rivers from the mountains until it eventually was deposited on the shores of Siesta Key.