$1,500 per cabin offer is available on all 15-day cruises and valid on all upper deck cabins and suites. $1,000 per cabin offer is valid on most 8-day cruises in upper deck cabins and suites. $800 per cabin offer is valid on standard middle deck cabins. $200 per cabin offer is valid on standard lower deck cabins. Select cruises shorter than eight days are available at $500 promotional discount promotional. Offer is based on cabin availability at the time of booking and is not valid on any single supplement free cabins or solo departures. $400 non-refundable deposit is required to confirm a reservation. Offer not valid on the “The Danube’s Imperial Cities & Yuletide Markets River Cruise”. Offers valid on bookings deposited through March 31, 2020.