So you basically have a choice of large cruise lines and ships that are like floating 5-star hotels.  Or you can choose small local operators, sometimes with sailing boats.

For example, there's a small caribbean company offering sailboat cruises all around the Caribbean.  That's the only place they operate.

At the other end of the scale are p&o, carnival and other major cruise lines.

cruise lines offer all their deals on the web, often through consolidators.  Our partner links on this page will provide a wide range of cruise line offer for you to choose from