Huge yellowfin tunas and Mahi-mahi around, this is the fishing report from captain Franklin. hello, folks, we found a great spot full of tuna and Mahi, we caught 2 large Dorados and a total of 6 yellowfin tunas but one yellowfin was around 80 pounds and the other big one was 120 pounds. great day to be fishing in Costa Rica , check our reports online at