I mentioned before that one of the benefits of being a Carnival Corporation (or Royal Caribbean) shareholder is the shipboard credit that is offered. To claim this credit, you generally need to own at least 100 shares of the cruise line (stock symbols: CCL, CUK, or RCL as appropriate). You also will need to mail or fax either a shareholder proxy card or a copy or your brokerage statement to the cruise line to prove that you own the stock.
Here is a link with more complete information about the cruise line shareholder benefits offered to CCL and RCL shareholders.
