I agree with Sky, 700-800 is a lot! Since you are not drinkers,and your excursions are paid. your tips, photos, [which are very $$],and assorted onboard charges would make up the bulk of your statement.
If by chance you are planning on buying any electronics, or jewelry, use a credit card, for the protection it could give you if you have an issue, later on. Make sure you alert your credit card company, that you will be out of the country, so they will not red flag your account, when you try to make a purchase.
Small bills for in port, for the airport, tips at the pier, is a good idea.
Trip, with her book & tea!
Chat Hostess & Board Moderator