Atlantis Adventures offers a fishy activity for event, meetings and incentive groups: underwater submarine expeditions on the Caribbean islands of Aruba, Barbados, Grand Cayman, Cozumel and St. Thomas, U.S. Virgin Islands. The company's air-conditioned submarines, which feature 25-inch viewing portholes for every two passengers, travel up to 150 feet below the ocean's surface, allowing guests to get a fisheye view of sea creatures such as sharks and stingrays. Each submarine can accommodate groups of up to 48 people per trip. For more information, call the company's Fort Lauderdale, Fla.-based Caribbean operations at 954/779-1095 or visit www.atlantisadventures.com.