First things first. Sure, we all know that cruising in the British Virgin Islands is one of the great pleasures available to mankind. The water’s gorgeous, the navigation’s easy, and you could spend night after night anchored off a different island or cove for a very long time. But let’s get to the serious stuff: The beach bars. At the end of the day (literally), the beach bars in the BVI (and many other places) offer a welcoming conclusion to hours spent on the water; they’re destinations in their own right, and they often can provide the more memorable moments…