Sweet @gopro video of Promise Sink in Wakulla, FL. This was an AMAZING sink hole, formed from underground streams of water, eventually the limestone is eaten away from the water currents, and a hole like this one is formed. Over the centuries, trees fall and create a space where life can grow. Algae, other water plants and fish take refuge here. There are caves under the water which go between a family of sink holes in this area they are reached by scuba diving. Unfortunately you must be a Master Diver with 100+ logged cave dives to dive here. For now we will stick to swimming!!