Throughout Costa Rica’s Central Pacific coast, the season for sailfish generally picks up as the rainy season tapers off in early December. The fish usually stick around through April, although there have been excellent numbers in the so-called green season in June, July and August. Teams usually target packs of sails around well-known bottom structure in spots such as the Corner, the Craters, the Pocket and elsewhere, often finding a hot bite along current rips and edges, and frequently amid massive flocks of boobies, frigates and other seabirds. When the conditions are right, the bite can be unreal: Many boats here have had days of more than 40 sailfish releases, with some topping 75 in a single day. In the past few seasons, the numbers have dipped somewhat back to historical norms, but as with many of the world’s renowned billfish fisheries, it’s a natural cycle of ebb and flow.