The Sea of Cortez, one of the world’s most rich and diverse marine environments, is one of the few locales that yield marlin year-round. Besides being a prime spring spawning area for striped marlin up to 200 pounds, Baja’s East Cape is a favored location to achieve bill fishing’s Grand Slam, adding blue and black marlin (200-1000 pounds) and Pacific sailfish (80-150 pounds) to the mix.