Black
Marlin

Black Marlin, or A‘u in Hawaiian, are rare but awe-inspiring giants that occasionally venture into Oahu’s deep blue waters from Australia. Because they typically drift in while chasing schools of Blue Marlin, each sighting is serendipitous and unforgettable—making them one of the most prized and elusive targets in Hawaiian offshore sportfishing.

Black Marlin are among the largest bony fish in the ocean. In Hawaii, they average around 200 pounds, but legendary catches far exceed that—Oahu’s state record stands at 1,205 pounds, landed in 1980 aboard the Lei Aloha. As apex predators, their size and raw power make them an ultimate test of an angler’s skill and endurance.

Encounters with Black Marlin in Hawaiian waters are exceedingly rare—often fewer than half a dozen are caught annually, and usually only as incidental trophies while targeting Blue Marlin. Because of their infrequency and formidable strength, Black Marlin are meant for highly experienced anglers with top-tier equipment and nerves of steel.

Landing a Black Marlin is the angling equivalent of a moonshot. Their rarity makes them legendary, and their presence floats a serious “bucket list” aura over any sportfishing charter. Whether you’re battling one from the cockpit or simply spotting its dorsal fin surge through the swells, the thrill is unmatched—solidifying your place among the few who’ve conquered these ocean titans.

These exotic visitors may appear year-round, but they’re most often encountered during the winter months—particularly when trolling for Blue Marlin in the company of migrating schools. This seasonal overlap makes winter the most promising window to hook into one of these leviathans.