In addition to the Ark Park, there are plenty of opportunities to expand Biblically-literal entertainment into the neighboring area. Here are some other possible attractions:
Red Sea Water Park: just like the secular variety, except that an inexplicable dry area divides all the waters whenever Charlton Heston makes a guest appearance.Biblical Justice Arena: rebellious kids, non-virginal brides, gays and lesbians, and worshippers of other religions can be stoned to death for their offenses.
Flat-Earth Planetarium: features a scale model of a four-cornered Earth, a demonstration of our geocentric solar system, and a depiction of how the stars are fixed in the firmament over our heads.
Satan's Stegosaurus Show: an archaeology exhibit explaining how dinosaur fossils were buried by the devil in order to deceive us about the true age of the Earth.
Plans are also underway for the Garden of Eden Biology Museum (to explain how Adam was created from dust, how Eve was formed from his rib, and why dinosaurs were all herbivores before The Fall) and a Conundrum Commons (various displays will reconcile the major Biblical contradictions and explain how three equals one, but will not discuss either unicorns or zombies).
Note: Biblical rules prohibit the serving of shrimp or lobster in any park restaurants. Also, poly/cotton blend t-shirts are not sold in the gift shops (which are sweatshop-friendly, because slavery is condoned by the Bible).
"Don't look now, but you stepped in some Lamb-of-God poop..."
Perhaps you'd like to add "The Holy Land Experience" to your list: http://www.holylandexperience.com/. I actually went on a field trip here with my high school - VERY boring. The highlight, by far, was the petting zoo, which had a real goat!