A question for the locals or people in the know - is it possible to ship a box from the US to the BVIs?

To keep a long story short, our travel arrangements require very light luggage allowance. We are 20+ year USVI and BVI visitors so I all about packing light. However, with snorkel gear and a husband and son with huge feet, our fins alone are over 15 pounds.

Is feasible to explore shipping a box via UPS or Fedex? I would want to ship it back home as well.