Dutch Springs contains many interesting artificial reefs for divers to explore. In fact, even the hole itself is man-made - it is an old limestone quarry.
Although all of the land-side facilities have been demolished to make room for warehouses, the quarry itself is still open in a limited way - training dives only.
These fish all live and feed on the bottom, out in the open. Often they will hide in the sand with just their eyes visible, and most can change color to match their surroundings.