The type of wildlife you see will depend on when you travel. In December you may see migrating humpback whales; January through March, you are likely to be able to get close to California gray whales, which birth and rear their young in the lagoons on the Pacific side of the Baja peninsula; and in April you are likely to see a great variety of whales in the Sea of Cortez. Year-round, you will find that the islands in the Sea of Cortez thrive with birdlife, including pelicans, cormorants, Frigatebirds, egrets, herons, sandpipers, plus brown- and blue-footed boobies. The islands—a UNESCO World Heritage site—are famous for their wildlife. You’ll likely see strange lizards, rattleless rattlesnakes, and oddly beautiful plant life.