" The Million Dollar question" of Where are they? at any given time is really public knowledge.. Always referred to as the ever changing "Tuna Grounds" The main issue is knowing how to fish for them.. once you get there. what they are biting on.. and what techniques are producing.. This is also somewhat shared over the radio in most cases to everyone on the grounds..
Color spreader Bars. speed.. for jigging. there is types of jigs .. slow retrieve or fast retrieve.. Color is a big factor in every case. sometimes you will just have to experiment. and find what's working. just like any other fishing
But always be prepared to come and say. "that was a nice boat ride"
For me.. the adventure is fun just by it's self