It is usual for a charter boat to have three changes of linen-sheets, pillow cases, towels, hand towels, beach towels, washcloths, and dish towels for the galley. A busy vessel usually has one change ashore at the laundry and two full changes aboard. On boarding the ship, guests are given two sheets, one pillowcase, one washcloth, one towel, one hand towel, and one large beach towel. Sheets and pillowcases are expected to last one week, which is the length of an average charter.
Sometimes extra towels are needed during a cruise. Keep a good stock.