I had another thought about my list, and would like to add "number 11". I'd add this one not necessarily because it is a top site. (it is a good site), but I'd add this one because of location. When we run your typical seven day charter, it seems like all of the snorkeling is in the channel and on the east end. Once you come around by CGB, there really are not a lot of options for good snorkels, including Jost, which IMO does not have great sites. So, number 11 on the list, primarily because of location, would be the Pinnicles at Brewers Bay on Tortola. Our guest in the past year have loved it. It is seldom used (your always alone), and it gives you a great west end option! Enjoy - Capt Derek