SeaWorld is a chain of marine mammal parks in the United States, with operations in Orlando, Florida, San Diego, California, San Antonio, Texas, and previously Cleveland, Ohio. The parks feature killer whale, sea lion, and dolphin shows and zoological displays featuring various other marine animals. The parks' icon is Shamu, the killer whale.

Sea World also has highly trained dolphins and sea lions that perform in circus-like acts. The dolphin shows are intended to excite audiences as the dolphins leap metres out of the water in unison, and as they are "surfed" by their trainers.

One of the biggest attractions is the Shark Encounter, in which guests are carried through a submerged acrylic tube into the sharks' tank, a simulating a helicopter ride to the Arctic. After the ride, the guests arrive at a simulated base station, where they can observe polar bears, Pacific walruses, and beluga whales.