<P> `` 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 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 . </P>
where does the sand in destin come from
sand that the Army Corps of Engineers dredged up from the East Pass