The Miami Seaquarium is a 38-acre (15 ha) oceanarium located on the island of Virginia Key in Biscayne Bay, Miami-Dade County, Florida, United States and is located near downtown Miami. It is the longest operating oceanarium in the United States. In addition to the marine mammals, the Miami Seaquarium also houses various fish, sharks, sea turtles, birds, reptiles and manatees. The park offers eight different marine animal shows and presentations daily and attracts over 600,000 visitors per year. The park employs over 225 full and part-time employees. It is the third largest contributor to Miami-Dade County’s revenue through land lease payments and taxes.