The ruins of the sugar mill at Bulow Plantation. This was the largest sugar mill in the area before it was destroyed by the Indians during the Second Seminole War. It is now preserved as part of the Florida state parks system.
The Lighthouse Archeological Marine Program (LAMP) are the focus of this documentary about their efforts to find the Jefferson Davis. You can learn more about this project at their web site (http://www.staugustinelighthouse.com/lamp.php).