Whale sharks, a pod of dolphins, sea lions, a school of hammerheads, a large Galapagos shark, green sea turtles, hundreds of almaco jacks, blue jacks, bacalao, a school of leather bass, Pacific dog snappers, masses of bluestriped chub, yellowfin tuna and blue runners. A lifetime of sightings? Nope. A week's worth? Try again. How about a single dive? Such is life at many of the dive sites in the Galapagos archipelago.