Re: Island hopping between BVI and USVI?
Since the only place to clear USC & BP on St. John that I am aware of is Cruz Bay on the western end of the island, you may want to look into a USC & BP program called the "Local Boater Option". While I am not yet enrolled, I intend to be so. It is my understanding that you can enroll into the program at USC & BP in Cruz Bay allowing you to check in by phone in the future. Example: You clear out of the BVI's at Jost or Soper's and want to go to Coral Bay on the very east end of St. John. This program allows you to check in by phone, thus avoiding almost a full days sail to Cruz Bay and return.
Remember that you must check into and out of the BVI's, while it is only necessary to check into the US. Another problem area that gets people in trouble is the fact that the USVI are special tax free zones and as such require that you clear US Customs when entering the taxable US, ie: Puerto Rico or the mainland. If in doubt, ask.