I have been teaching scuba on St Thomas since 1981, Coki beach is an easy beach dive, admiralty great wreck dives, Aqua Action, great people and only take 6 on there boat. All the dive ops are for the most part good, they all share the same dive sites depending on there location. Don't let anyone sell you that the wreck at Buck Island is a wreck...it use to be back in the 80s but not any more, its a few pieces of metal on the bottom with some cement bags. I have a small shop on the north side and I only do shore or kayak dives but they are great dives. The only problem is the dives are dictated by weather and range from 40 to 60 feet. Homers scuba and snorkel tours if you care to check it out.