I have only been diving in a few places in the Carribean, how ever my favotire spot so far was the wreck of the Rhone. You can look it up as the RMS Rhone as a dive site. The water vis was well over 100 feet and the 300 foot ship sits in 80-90 feet of water and you can swim through it and see turtles feeding on the sponges inside of it. it was the best dive site I have ever been on to date. Barbados has some very beutiful coral reefs with conch all over it. It all depends on what you want to see on the dive.