The best shore dives on Grand Cayman, at least in the opinion of many locals, include Babylon, Anchor Point, and the Main Wall (not mini-wall) at Turtle Reef. I don't know many people who would include Cobalt Coast on this list.
I would have to agree.. I have stayed at CC and didn't think the shore diving was that good.. I think the shore dives at Sunset House are better although at recreational depths they do show diver stress (at technical depths I really like the area)..