My father-in-law is coming to visit, where is the best place in Costa Rica to take him sport-fishing?
In Jaco you will find great tours for sportfishing on every corner (Dreams Sportfishing, Angry Marlin, jaco tours sport fishing… and so on). Very popular and good there. A little more than an hour drive from San Jose so easily accesible.
Tamarindo and Flamingo Area also have some companies going out for sport fishing. (Kingpin, Tamarindosportfishing,..).