West End of Grand Cayman Island is Turtle Reef, right next to turtle farm. Dive operation is DiveTech a very well run complete dive facility. Entry down a ladder into the water of a sheltered cove. Swim or dive straight out to the first buoy. Follow the rope to the second buoy. Straight out is the top of a 40' wall which is excellent. 60' max depth. Turn left about 30 yards to see some tremendous tarpon just hanging out. Also: rays, pike blennies, sea lettuce slugs (right at the second buoy), turtles, etc. OR you can continue QUITE a ways out to the big wall. I just had enough air to get out there (at 30'), descend to 140+ feet, turn around and come back. Not worth the swim!