Deep and dark, the Mud Hole is the Hudson River's channel from a time when the oceans were much lower. Today it collects all the silt and sediment that the river carries out to the sea, making it a very fertile fishing ground, frequented by pelagic fishes and large sharks.
With depths ranging from 130 to 200 ft and difficult diving conditions, most Mud Hole wrecks are beyond the capability of a typical recreational diver without specialized equipment and experience. Where river water mixes with seawater, suspended particles form a constant snow of sediment in a process known as flocculation. This results in very dark and turbid conditions, often with visibility measured in inches and total darkness at the bottom. In addition to this, most Mud Hole wrecks are heavily fished, and are covered with dangerous tangles of monofilament and fishing nets