|* All offers are capacity controlled and can be withdrawn at any time. Cruise must be booked 4/1/17-4/30/17. Offer applies to cruises that depart on or after 5/1/17. Free sail nights based on sailing length and applied in the form of a discount towards the total stateroom cruise fare. Savings based on number of cruise nights: 1 night free for 3-5N cruises, 2 nights free for 6-8N cruises, 3 nights free for 9-11N cruises, 4 nights free for 12-14N cruises. The savings amount for each free night is calculated by dividing the total stateroom cruise fare by the number of cruise nights. See Special Offers page for full details.