Established in 1964, Sea World San Diego is a marine theme park. Sea World both uses media in its shows (for example, the high-tech screen displays behind the Shamu show), but itself is a form which mediates ocean space. While most of the views afforded are those of animals jumping above water, there are also several underwater experience. Perhaps the key underwater view is a tunnel that takes visitors underneath the shark tank.
For a thorough study on Sea World, see Spectacular Nature: Corporate Culture and the Sea World Experience, by Susan G. Davis.
“Susan Davis analyzes the Sea World experience and the forces that produce it: the theme park industry; Southern California tourism; the privatization of urban space; and the increasing integration of advertising, entertainment, and education.”