Florida Gulf Coast Springs
The Florida Gulf Coast is home to a number of offshore springs and cave systems. During the last ice age, sea levels were 300-400 feet lower than they are today. The floor of the Gulf of Mexico represents surface area alternately exposed and covered by sea levels in flux since the ice ages. As recently as 10,000 years ago, Florida’s landmass was about three times the size it is today (see image on the right). Scattered across the huge, underwater plateau off the state’s west coast are countless springs, sinks and other features, products of erosion and other geologic forces.