I will be in St. Thomas the last week in May. I want to take a day trip to St. John & the British Virgin Islands. Do I need to make a reservation for the Baths this time of the year. I have read that it can be very crowded when the cruise ships are in. I checked the schedule for Jan. & it looks like only 1 day in the month of January that ships aren't in port. So would I do best by waiting till the scheule comes out for the month of May? Some days up to 5 ships are in. Also I would appriciate a few websites that do days trips to the BVI. Cost is a concern.