Thank you Ambient. I was walking by when some tourists pointed out the moving plants. Waited about 5 minutes and left. Walked a bit, looked back and saw them pointing. Another man that was also waiting while I was there, walked past me and said something was stretching its head up. Back I went.
When I got to Green Cay, I overheard three different groups of folks talking about the turtles. I knew exactly where they were. They like that dead palm. There's usually an Anhinga drying off on the top, but wasn't there that day.