We have gone to BVI 4 times with kids ranging in age from 6 to 14, usually in July. The kids always love it. Their favorite places are the Baths (get there before 8:00), Sandy Cay, White Bay in Jost van Dyke. I like Marina Cay and Virgin Gorda sound. If you take a relaxed agenda, then I don't think the selected places will matter much. I suggest you plan shorter sails (2 - 4 hrs) and plenty of time to explore on shore. It takes a lot longer to go east than west because you are fighting currents and winds when going east. You do get occasional rain showers, sometime with winds gusting up, but they blow through in about 1/2 hr and then it is back to the sunshine.