Many years ago, I traveled to Ocala and stayed with friends who had a hundred year lease on a cabin in the National Forest... It was super cool, but what was over the top cool was they took us to a spring, which I have no recollection of the name. We parked the car and walked through woods that had a sandy bottom. Through this woody sandy area, there were boils. You could stand on the boil and it would suck you down, and then the next second, push you up. Does anyone know what I'm talking about, because people look at me funny when I tell them about it?????