Since 1947 tourists have been lured up the coast by the siren song of Weeki Wachee Springs , one of Florida's original roadside attractions. Elvis Presley and Esther Williams were among the guests who flocked here to watch glamorous long-haired mermaids perform in an underwater grotto. The mermaids are the main attraction, but there's also a river cruise, plus swimming and waterslides at the adjoining Buccaneer Bay water park. (Hint: admissions are reduced in the off-season when the water park is closed.)