If you are thinking about taking a cruise to Mexico or to Alaska you can forget it. Those have been done to death. I say take and exotic and adventerous river cruise in a far away land. See the Taj Mahal in India or the Nile River in Africa. Cruise the Mekong River and discover the ancient city of Ankor Wat. I personally recommend the 3 Gorges Dam cruise in China. Check out some of the various tours at their website.