The cruise ship industry is among the leading sectors in the travel and tourism industry. Over the years, the cruising industry has grown from the 19th century when people cruised in ships carrying mails to different continents(Dawson, 2000). In a span of three centuries, the cruising industry has change not only in the number of passengers, but also in the design, size, facilities, and services that are offered in cruise ships (Dowling, 2011). Market projections show that the cruising industry will continue to grow in passenger number and improvement in services, especially in response to the changing technology. This study will review the cruising industry in three parts. First, the study will look at the trends in the cruise ship industry. Second, the study will review two major corporations, Carnival Corporation and the Royal Caribbean Cruises. Lastly, the study will review P&O cruise line.