I have been diving in Grand Cayman several times. Each time has been a wonderful underwater adventure. The water clarity is typically amazingly clear. Water temperatures are usually low 80's F. Marine life is plentiful and varied. Eels, rays, sharks, and turtles are frequently seen. Corals and sponges are plentiful. Lionfish have become an invasive species and some of the dive operators offer culling excursions. Topside, the community is expanding with ongoing construction. Dining can be pricey but the meals I have had have been wonderful. Overall it is a place worth seeing.