Costa Rica is a great place to go ocean fishing. Taking the Coco Beach shuttle is an excellent way to find a boat captain that will take you inshore or offshore fishing. Once you've found the right captiain, LAR Transports can take you to the dock at the time appointed by you and the captain.
Fishing season is decent at the moment. Rains are hitting the coast on account of effects due to El Niño, which then floods rivers creating fishing spots for Mahi Mahi (Dorado), Rooster Fish, Amber Jack, Tuna, Marlin, Snapper and much more.