A theme cruise is one that focuses on a specific topic or event and where the itinerary, entertainment and on-board activities are centered around it. You may have heard of a wine cruise or golf cruises or music cruises such as the Groove Cruise or one devoted to alt rocker Jonathan Coulton.
They are growing in popularity as cruise lines embrace them as a useful way of attracting new people to cruising. As a result, you are likely to find a theme cruise for almost any topic you are interested in: cruises dedicated to golf, gays, art, cycling, history, nature, photography, religion, Jewish heritage and many others. See the Theme Cruises section of Cruiseable Magazine.
To help get you on your way, here are the three main kinds of theme cruises.