I parked at the H.H. Buckman Lock Visitors Area (seemingly shut down) and walked the mile down Buckman Lock Road, crossing FL 19. There, you will see the FT (Florida Trail) sign and be tempted to go straight in, circumventing a gate. Look instead to your immediate right, and you will spot a small bridge made of just a few planks. Cross that, and you will not miss the trail to your immediate left leading into the woods.
The trail back here has many beautiful views including several ponds and great hiking views. I don't understand what happened here - the trail is made of old roads that seem shaped like a tiny neighborhood. Yet I saw no homes, abandoned or otherwise, possibly because I stayed on the main trail. Also, the roads aren't entirely abandoned as I saw fresh tire marks, most from tractors but some from trucks. You'll also find a fair amount of trash unfortunately as locals throw many beer cans, but also a couple piles of household items. I'm making it sound bad - mostly it's very beautiful - but I find all of this a curiosity as I have never encountered vehicles or even people back here.
The trail is easy to follow with orange markers and I understand leads to FL 20. I turned back after a few miles in, with a 7.2 mile hike round trip. Very peaceful and nice back there, and the ponds offer great viewing, especially if you like dragonflies!