Costa Rica is one of the best sport-fishing destinations in the world. If you're a serious angler, I'd focus on the Pacific Coast rather than the Caribbean side for your first trip. The Pacific offers world-class offshore fishing for billfish and tuna, plus outstanding inshore action. Popular Fish Species: Sailfish – Costa Rica is famous for huge numbers of sailfish. Blue Marlin and Black Marlin – true bucket-list fish. Yellowfin...