Once the largest plantation in East Florida, visited by John Audubon to paint the greater yellowlegs shorebird, now a set of ruins ripe for exploring with an interesting history lesson. Bulow Plantation Ruins Historic State Park [3501 Old Kings Road Flagler Beach, FL 32136] is a short drive down a dirt road, $4 per vehicle on the honors system.
Enter the reconstructed plantation house and orient yourself. Ruins include the plantation made of coquina rock, a springhouse, wells, foundation of the original plantation house, and slave cabins.
From 1821 to 1836 the plantation grew sugar, but also cotton, corn, rice, and vegetables.
A set of weathered informational plaques takes you through the process of sugar production. There were 200 slaves working on the plantation and 1.2 million pounds of sugar produced, worth approximately $20,000 a year in 1836. Near to the ruins is a small open air museum which stores era artifacts and personal accounts at the plantation.
During the second Seminole War the Florida territory was a hostile location, John Bulow the owner of the plantation, headed north. The Seminoles burned Bulowville and other plantations in the area. There are almost seven miles of trails that connect the ruins to Bulow Creek State Park. On just a short walk I encountered a red shouldered hawk, the closest ever before.
It was unperturbed by my presence and made an excellent model.
Back at the parking lot is a kayak launch to further explore the Bulow Creek. 
It would have looked quite different in the 1800s as a place which cultivated rice.