There is cruise for everyone. There are luxury cruises and mass-market cruises. There are cruises in the Caribbean, on the Nile and the Amazon, cruises circumnavigating Iceland, traveling the fjords of Norway and visiting the polar regions of Antarctica. There are cruises on practically every navigable river and lake in the world and on all of the 7 seas. There are cruises where you can participate in rigorous expeditions into nature or where you can spend all day doing nothing by a pool.