We are planning our winter destination. We have been to Coz the last two years running and have absolutely no complaints, but are curious about Grand Cayman. So we are asking for opinions on which place has better diving. We are after lots of diversity with corals and fish. What are the potential for big fish in Grand Cayman? We did a phenom dive in Coz last year with eagle rays. Just looking for experiences underwater and with Dive shops in Grand Cayman. If we do Coz again we will use Dive with Martin as we have found no better dive op there. Thanks in advance I look forward to your reviews. BTW dive trip will be mid to late January.