It's the animals who are the stars here. Sleek dolphins perform like gymnastic champions, and orca whales sail through the air like featherweight Nijinskys. The world's largest zoological park, SeaWorld is devoted to mammals, birds, fish, and reptiles that live in the oceans and their tributaries. Every attraction is designed to explain the marine world and its vulnerability to human use. Yet the presentations are always enjoyable, and almost always memorable. The highlight is Shamu Stadium, where you can see Shamu and his sidekicks propel their trainers high up into the air. Discovery Cove, a separate attraction, allows you to interact with a dolphin, splash around an artificial reef, snorkel along an artificial river, and wade among real stingrays. It's calming, quiet, and rather expensive.