Nearly all sailors bring too much luggage and do not realize that it is almost impossible to stow hard cases on a yacht. Only soft bags should be used. Pack light. Life in the Virgin Islands is informal and even in the very best eating places, men can get by with a pair of slacks and a sports shirt and women with a simple dress or slacks. The majority of places, shorts and T-shirts are fine. Divers and snorkeler's should pack their favorite mask, snorkel, fins and regulators.