Long Key was once referred to by the Spanish as "Cayo Vivora", which means Rattlesnake Key. The name was used to describe the shape of the island, which resembles a snake with its jaws open. Today, Long Key State Park, in Long Key, Florida, is known for being rich in history and recreational opportunities as well as natural beauty. The 965 acres that make up Long Key were acquired between 1961 and 1973, with the park's official opening in 1969.