Six or seven megaships bobbing offshore is business as usual during high season at Cayman's capital, George Town. Tender boats shuttle the masses— 1.8 million a year—back and forth to the island, where some hit the brand-name shops in town, others head for the nearby Seven Mile beach, and still more hop on buses bound for diving trips or jaunts that range from snorkeling to feeding the rays at Stingray City.