9. Marineland of the Pacific
A year before Disneyland’s grand opening, Marineland of the Pacific premiered in Palos Verdes, California in 1954. Much like Sea World, Marineland was an aquatic-themed park. Its main attraction was a show featuring performing killer whales named Corky and Orky. It also had the unique attraction of a swim-through aquarium, where guests, outfitted with goggles and snorkels, could swim with marine life. For a long time Marineland was famous for appearing in popular TV shows like The Beverly Hillbillies and The Munsters.
Unfortunately, Marineland fell on hard times in the late 1980s. At just about the same time, the company who owned Sea World, Harcourt Brace Jovanovich, was looking to acquire killer whales for its own park in San Diego. Harcourt ended up purchasing all of Marineland along with the whales Corky and Orky. The whales were moved to Sea World, and Harcourt opted to close Marineland rather than renovate and reopen.