Ever wonder where the top destinations are for catching tuna? Here are 10 of the best spots in the world to catch big tuna. Of course "big" varies per species; a 350-pound yellowfin tuna is as big for that species as is a 1,000-pounder for bluefin tuna. Also, note that these are not offered as "the ten best spots" in the world, but rather, 10 of the best. Big difference. These are not ordered by rank, but arbitrarily and randomly. And there are lots of other candidates, of course, such as Kona, Rodrigues Island, the Azores, Ivory Coast, Canary Islands and more.