Our Best Offer Ever is valid for new, individual bookings on select 2018 itineraries and departure dates only, made between 11/6/2017 and 4/15/2018. Offer applies to full-fare bookings only. Availability of all stateroom categories cannot be guaranteed. All fares and savings listed are in US Dollars. Fares featured are for cruise or cruise/tour only, per person (unless otherwise noted) based on double occupancy. Rates for single guests are available upon request. Rates and savings vary by itinerary, departure date and category of accommodations. Offer is not combinable with any other promotional offer or program, except River Heritage Club savings/benefits. Offer is capacity controlled and may be modified or withdrawn at any time. Other restrictions may apply.