http://gulfstrategic.com/gc/wp-content/uploads/logo_final.jpg00PR PRhttp://gulfstrategic.com/gc/wp-content/uploads/logo_final.jpgPR PR2021-06-14 12:31:552021-06-14 17:06:51Huge sinkhole bursts open near underwater 'blowhole' in South Australian coast - Livescience.com
