We recently visited the Grand Cayman and did indeed visit Hell. Not just once but twice. What we found was there was an abundance of life amongst the rocks. Not only lots of iguanas and anolis (they appear to enjoy the sun and rarely moved) were located there but an abundance of bird life. We manage to take pictures of a blue-winged teals, moorhens, black-head stilt, green herons and little blue herons. Many Passeriformes types of birds. Each day revealed different birds. If you enjoy birding then don't miss this spot on the island. We did see wild Cayman Parrots in this vicinity as well as Frigatebirds in the skies above.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.