Encounter a Huge Variety of Species Exmouth’s pristine, World Heritage listed waters are home to an amazing array of prized game and sport fish. All six Australian billfish species (blue, black and striped marlin, sailfish, broadbill swordfish and shortbill spearfish) are encountered here, along with yellowfin tuna, mahi mahi (dolphinfish), wahoo, cobia, Spanish mackerel, giant trevally, golden trevally, queenfish and amberjack just to name but a few.