In 2011, North Carolina scuttled the 180-foot Coast Guard buoy tender USCGC Spar off Morehead City; divers later documented sand tiger sharks using the wreck

Resting peacefully on the ocean floor off North Carolina, the USCGC Spar, once a buoy tender, has transformed into a vital habitat for sand tiger sharks. Scientific observations show these sharks have a remarkable preference for shipwrecks, using the site as a 'home base' for extended periods. This fascinating find underscores the ecological significance of shipwrecks, especially for endangered marine species like the sand tiger shark.