Juvenile black marlin can be caught in Kuala Rompin. They are fairly common although sailfish outnumber them by a long way so chances are you’ll have a sailfish at the end of your line.
Bigger blacks are often a handful on lighter gear meant for sailfish and not surprisingly, many are lost after a lengthy battle much to the chagrin of the angler.
Rompin’s black marlin are more commonly caught at the beginning of the season (March/April) and towards the end of the season (late October/November).
They are also located much farther out than the sailfish which are more willing to come nearer inshore.
The marlins here are juveniles between 20kg to 40kg although larger fish around 100kg have been caught.