Re: BVI budget
Zanshin practically lives there, so his points are all good - especially the over provision part.
The boats do not come with even the simplest condiments, don't forget to add them to the list. Some charter's work with local groceries to pre-order and stock your boat. It costs a bit more but it's worth it to have more time on the boat and less shopping.
Only order for a few days at a time, space is limited.
From a dollar perspective figure on 500 bucks a person to eat drink and be merry for a week.
Add 60 bucks a head for every time you plan on eating out. If you want cocktails with the dinner figure on 9 bucks each. You can eat cheaper - but even a burger with fries will run you 12 bucks or more.
Beef, even hamburger will run you 10 - 20 a pound, eat chicken.
Lessons learned are opportunities earned.