Did a total of 16 dives on the reef and wall with a couple more on the Kittiwake and Stingray City.
Visibility was universally excellent with very little surface chop and negligible underwater currents. The reef shows a bit of wear from over-use, namely some areas being sparse on the more shy species of fish. Most of the larger animals we saw were 'passing thru' as much as we were, and really large schools of fish were fairly uncommon. A treat on every boat ride we took to a dive site was the flying fish catching air in front of the bow. I had never seen them before. The only shark I saw the entire week I spent on Grand Cayman was a lone nurse shark huddled under a ledge utterly unimpressed by gawkers. A few turtles could be seen near the wall, but again, most seemed to be tourists as well.
Despite the dive traffic, the reef seems pretty healthy, with no shortage of color and variety of coral. Lionfish are ever present and most dives on the wall found at least one hiding in a crevice. But taking the night time submarine tour in the bay where cruise ships anchor revealed the true scale of the invasion. We counted 23 lionfish just within sight of the sub's lights on a one hour tour.
What really makes the Western Wall, indeed the whole lee side of the island, so easy to dive is the proximity and availability of quality dive shops. Diving on Grand Cayman will spoil divers to the very best both in terms of the diving itself, as well as the service available to enjoy it.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.