(AP) — Mystic Aquarium is nearing completion of a new $500,000 exhibit that will promote conservation of various habitats around the world and feature four large alligators in an 11,000-gallon exhibit designed to put them just a few feet away from visitors. The aquarium is transforming the former Ocean Exploration Center, which featured the discoveries and expeditions of Titanic discoverer Bob Ballard, into a 7,000-square-foot exhibit entitled Exploration: During a tour Wednesday, public relations director Dale Wolbrink said the exhibit's five interactive environments — the rainforest, Arctic, desert, wetlands and open ocean —will allow the aquarium to better promote the importance of conservation, which has always been a part of its mission. Each area has interactive digital kiosks with educational and conservation messages, games and photo opportunities including a virtual shark cage and a sled dog ride. In another area, children will be able to dig for artifacts, drive a remotely operated vehicle in the desert and play instruments made by rain forest inhabitants.