The Baja Peninsula is the launching point for some of the most electrifying big animal encounters on earth. Boats depart from Cabo San Lucas for cruises to the Socorro Islands, where undersea pinnacles attract giant manta rays, silky sharks, bottlenose dolphins and hammerheads. Divers may be immersed in flashing shoals of jacks and yellowfin tuna, or catch a glimpse of migrating humpback whales. Farther to the north, La Paz is the starting point for trips into the rich waters of the sea of Cortez, where sea lions and seal frolic. Out in the Pacific, Guadalupe Island provides a rare and unforgettable opportunity for cage dives with great white sharks in cerulean blue waters.