San Marcos, Texas' Aquarena Center, formerly a hilarious tourist trap called Aquarena Springs, will be bulldozed, with the land being restored to turn-of-the-previous-century condition.
Aquarena was the home of the infamous Ralph the Swimming Pig, and his keeper Glurpo, a one-time "nightmarish aquatic clown" (http://www.boingboing.net/2005/01/20/nightmarish-aquatic-.html) turned "underwater witch doctor." There were also "aquamaids" who picnicked & performed ballet underwater, diving ducks, and a sadistic swan named Rufus.
Glass-bottomed boats will continue to ply the lake, described as "home to eight federally listed endangered species. … one of the oldest continually inhabited sites in North America, and the second largest artesian spring in the western United States."
(Full disclosure – I worked in the underwater show for a couple of seasons in the early 70s. I WAS Glurpo, (in his witch doctor persona) as well as Bubblio, Scrubblio and "Announcer" and I knew Ralph personally!)