Where to Fish in June & July SWS Staff The Salt Water Sportsman editors list the best two locations to go in June and July for your favorite saltwater species, plus notes for each location about why the bite there is hot. Pacific Blue Marlin First choice: Hawaii Second choice: Australia The abundance of tuna and mahi in Hawaiian waters keeps plenty of big, hungry marlin in the area, providing ample opportunity for anglers looking for a bragging-size catch to tangle with specimens weighing over 500 pounds. The fishing forecast is quite similar in Gold Coast, Australia, where the big-game fleet also enjoys consistent action with blues of superlative size.