One of the largest indoor aquariums in the world, SeaBase houses over 6,000 sea creatures across multiple exhibits in EPCOT's Seas pavilion. Explore two levels of saltwater tanks featuring dolphins, sharks, sea turtles, manatees, rays, and countless tropical fish. The 5.7-million-gallon main tank is visible from multiple vantage points and even serves as the backdrop for a restaurant. Free to explore after riding The Seas with Nemo & Friends or via direct walk-in entrance. Scuba and snorkeling experiences are available for booking.